We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
To save content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about saving content to .
To save content items to your Kindle, first ensure no-reply@cambridge.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Buildings employ an ensemble of technical systems like those for heating and ventilation. Ontologies such as Brick, IFC, SSN/SOSA, and SAREF have been created to describe such technical systems in a machine-understandable manner. However, these focus on describing system topology, whereas several relevant use cases (e.g., automated fault detection and diagnostics (AFDD)) also need knowledge about the physical processes. While mathematical simulation can be used to model physical processes, these are practically expensive to run and are not integrated with mainstream technical systems ontologies today. We propose to describe the effect of component actuation on underlying physical mechanisms within component stereotypes. These stereotypes are linked to actual component instances in the technical system description, thereby accomplishing an integration of knowledge about system structure and physical processes. We contribute an ontology for such stereotypes and show that it covers 100% of Brick heating, ventilation, and air-conditioning (HVAC) components. We further show that the ontology enables automatically inferring relationships between components in a real-world building in most cases, except in two situations where component dependencies are underreported. This is due to missing component models for passive parts like splits and join in ducts, and hence points at concrete future extensions of the Brick ontology. Finally, we demonstrate how AFDD applications can utilize the resulting knowledge graph to find expected consequences of an action, or conversely, to identify components that may be responsible for an observed state of the process.
Next generation high-power laser facilities are expected to generate hundreds-of-MeV proton beams and operate at multi-Hz repetition rates, presenting opportunities for medical, industrial and scientific applications requiring bright pulses of energetic ions. Characterizing the spectro-spatial profile of these ions at high repetition rates in the harsh radiation environments created by laser–plasma interactions remains challenging but is paramount for further source development. To address this, we present a compact scintillating fiber imaging spectrometer based on the tomographic reconstruction of proton energy deposition in a layered fiber array. Modeling indicates that spatial resolution of approximately 1 mm and energy resolution of less than 10% at proton energies of more than 20 MeV are readily achievable with existing 100 μm diameter fibers. Measurements with a prototype beam-profile monitor using 500 μm fibers demonstrate active readouts with invulnerability to electromagnetic pulses, and less than 100 Gy sensitivity. The performance of the full instrument concept is explored with Monte Carlo simulations, accurately reconstructing a proton beam with a multiple-component spectro-spatial profile.
In this introductory chapter, we provide a brief overview of some of the main topics related to dementia communication research that are addressed by the different chapters in this edited volume: Dementia and Diagnostics, Dementia and Conversational Strategies, Dementia and Epistemics, and Communicative Challenges in Everyday Social Life. One of the central aims of this volume is to shed more light on how persons with dementia accomplish relevant goals in interaction and also how changes in an individual’s discursive abilities may impact how conversationalists negotiate a world in common and continue to build their social relationships. All contributions for this edited volume draw on the methods of Conversation Analysis (CA), an approach to social interaction that provides a detailed view of the moment-by-moment accomplishment of social life. By exploring interactional practices through the lens of CA, this volume seeks to explore interactions involving people with dementia in a variety of contexts (everyday and institutional), pointing to both the interactional difficulties that often arise, but also the creativity and collaboration within these interactional encounters. A summary of each of the volume’s chapters is also provided.
Multiple linear regression generalizes straight line regression to allow multiple explanatory (or predictor) variables, in this chapter under the normal errors assumption. The focus may be on accurate prediction. Or it may, alternatively or additionally, be on the regression coefficients themselves. Simplistic interpretations of coefficients can be grossly misleading. Later chapters elaborate on the ideas and methods developed in this chapter, applying them in new contexts. The attaching of causal interpretations to model coefficients must be justified both by reference to subject area knowledge and by careful checks to ensure that they are not artefacts of the correlation structure. There is attention to regression diagnostics, to assessment, and comparison of models. Variable selection strategies can readily over-fit. Hence the importance of training/test approaches and cross-validation. The potential is demonstrated for errors in x to seriously bias regression coefficients. Strong multicollinearity leads to large variance inflation factors.
A colliding microjet liquid sheet target system was developed and tested for pairs of round nozzles of 10, 11 and 18 μm in diameter. The sheet’s position stability was found to be better than a few micrometers. Upon interaction with 50 mJ laser pulses, the 18 μm jet has a resonance amplitude of 16 μm at a repetition rate of 33 Hz, while towards 100 Hz it converges to 10 μm for all nozzles. A white-light interferometric system was developed to measure the liquid sheet thickness in the target chamber both in air and in vacuum, with a measurement range of 182 nm–1 μm and an accuracy of ±3%. The overall shape and 3D shape of the sheet follow the Hasson–Peck model in air. In vacuum versus air, the sheet gradually loses 10% of its thickness, so the thinnest sheet achieved was below 200 nm at a vacuum level of 10–4 mbar, and remained stable for several hours of operation.
The COVID-19 pandemic caused unprecedented loss as it swept through humanity wiping out 6.69 million human lives. It is now estimated that 660 million of the world’s population was infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the novel coronavirus that emerged in Wuhan, China, and then rapidly spread across continents. This is our story of how we came together during an incredibly challenging time to fight a common enemy. Times of crisis can often serve as strong drivers of creativity and innovation. It was during the crisis of the pandemic that the National Institutes of Health (NIH) launched the Rapid Acceleration of Diagnostics (RADx®) initiative to accelerate the translation of innovation into high-performing diagnostic tests. This book chronicles the power of innovating during a crisis, the compression of product launch timelines from over five years to under a year, the birth of creative financing ventures, the commitment of entrepreneurs, and the agility and resourcefulness of government institutions as they adapted to meet the imminent needs of the pandemic and serve the community. It is our sincere hope that the lessons learned from the trenches will improve our nation’s ability to fight the next pandemic.
To meet the demands of laser-ion acceleration at a high repetition rate, we have developed a comprehensive diagnostic system for real-time and in situ monitoring of liquid sheet targets (LSTs). The spatially resolved rapid characterizations of an LST’s thickness, flatness, tilt angle and position are fulfilled by different subsystems with high accuracy. With the help of the diagnostic system, we reveal the dependence of thickness distribution on collision parameters and report the 238-nm liquid sheet generated by the collision of two liquid jets. Control methods for the flatness and tilt angle of LSTs have also been provided, which are essential for applications of laser-driven ion acceleration and others.
The European grapevine moth Lobesia botrana (Denis & Shiffermüller 1776) is an economically important pest of the vine-growing areas worldwide. Chemical insecticides have been used for its control; however, its resistance status is largely unknown in many regions. We monitored the susceptibility of several L. botrana populations from Greece and Turkey. In addition, based on RNAseq transcriptome analysis, we identified and phylogenetically classify the cytochrome P450 genes of L. botrana, as well as analysed target site sequences and looked for the presence of known resistance mutations. Resistance against chlorantraniliprole, alpha-cypermethrin, spinetoram, etofenprox, and acetamiprid was very low (below 2.5-fold in all cases, compared to a reference strain from Greece) in all populations from Greece that were included in the study. However, resistance against indoxacarb (4–30-fold), spinosad (5–59-fold), and deltamethrin (18–30 fold) was detected in the L. botrana populations from Turkey, compared to a reference population from Turkey. De novo transcriptome assembly and manual annotation, and subsequent PCR-based analysis of insecticide target sequences (i.e. voltage-gated sodium channel – VGSC: target of pyrethroids and oxadiazines; nicotinic acetylcholine receptor subunit a6 – nAChR_α6: target of spinosad; ryanodine receptor – RyR: target of diamides; glutamate-gated chloride channel – GluCl: target of avermectins and; acetylcholinesterase – AChE: target of organophosphates) showed the absence of known resistance mutations in all specimens from both countries. Finally, the L. botrana CYPome (116 genes) was manually analysed and phylogenetically characterised, to provide resources for future studies that will aim the analysis of metabolic resistance.
Those who responded to the COVID-19 pandemic have now had the opportunity to reflect on lessons learned, and in this science and data-rich book, those reflections are presented as a behind-the-scenes chronology of events and discoveries that occurred in COVID-19's wake. Offering a rubric for a future pandemic response, each chapter is written by experts, with their unique perspectives, experience, and learnings woven into visual roadmaps throughout the book. These roadmaps serve as a scaffolding upon which future healthcare leaders can build when creating, implementing and executing operational strategies in the face of future infectious disease outbreaks. Written for both lay and scientific audiences and featuring case studies which give clinical insight into the unique bond between COVID patients, their loved ones and their healthcare providers, this important book allows readers to leverage the knowledge of experts to improve the outcomes of future pandemics.
Over the past several decades, clay minerals have been applied in various bio-fields such as drug and drug additives, animal medicine and feed additives, cosmetics, biosensors, etc. Among various research areas, however, the medical application of clay minerals is an emerging field not only in academia but also in industry. In particular, cationic and anionic clays have long been considered as drug delivery vehicles for developing advanced drug delivery systems (DDSs), which is the most important of the various research fields including new drugs and medicines, in vitro and in vivo diagnostics, implants, biocompatible materials, etc., in nanomedicine. These applications are obviously related to global issues such as improvements in welfare and quality of life with life expectancy increasing. Many scientists, therefore, in various disciplines, such as clay mineralogy, material chemistry, molecular biology, pharmacology, and medical science, have been endeavoring to find solutions to such global issues. One of the strategic approaches is probably to explore new drugs possessing intrinsic therapeutic effects or to develop advanced materials with theranostic functions. With this is mind, discussions of examples of cationic and anionic clays with bio- and medical applications based on nanomedicine are relevant. In this tutorial review, nanomedicine based on clay minerals are described in terms of synthetic strategies of clay nanohybrids, in vitro and in vivo toxicity, biocompatibility, oral and injectable medications, diagnostics, theranosis, etc.
Chapter 7 takes a closer look at some of the Sea Around Us fish-landings data that we assessed for Benford agreement in Chapter 5. We chose these data because of the mixed agreement findings among them: while the full dataset and several sets of subgroups indicated that the data exhibited Benford validity, when we analyzed West African countries individually, a number of them were found to have unacceptable Benford agreement and therefore problematic Benford validity. We present ways in which researchers can assess the impact of unacceptable Benford agreement on their analyses.
New product development processes need to be compliant to regulatory requirements, and this chapter highlights the salient processes and quality systems to put into place to achieve success. Project management is made simple with specific tools provided here. Customer feedback is channeled into specific product characteristics, and the right tools are shown in this chapter. The biopharma industry has statistics showing less than 10% of starting compounds succeed in reaching market approval, and this chapter explains what causes these failures. The key issues that have repeatedly caused failure during device and diagnostic product development are also pointed out. Ethical decisions have to be made during product development as shown in this chapter. Outsourcing is a real option due to the availability of many contract research and manufacturing organizations, and judicious use of this option is discussed in this chapter. Key milestones that reduce risk and show transition from early stage to preclinical prototype stages are reviewed here. Does the popular concept of minimum viable product in software development apply in biomedicine prototyping? Other similar questions that help the reader understand pitfalls and best practices are answered here.
How do you read a patent and what subject matter is patentable? What is the purpose of a patent? Who is an inventor on the patent if work is done by many people on the project? What is the process of obtaining a patent in my country and globally? Read this chapter to see how you could lose commercialization rights to your own invention. When exactly does an invention or idea become patentable? Once you own a patent, how can you make money from it? What is the process of licensing and the key terms that should be negotiated in such a license agreement? What is the use of a copyright or a trade secret in biotech? What exactly constitutes patent infringement ? These questions and many others are addressed in this chapter on intellectual property.
From the long path through preclinical development, entering the regulatory field of interactions for human clinical trials can sometimes feel like you are walking into the lion’s den. This chapter guides you through an understanding of how to interact and how to prepare for FDA meetings so that they are on your side rather than fighting you. The common goals of companies and the FDA are highlighted here. Specific issues with identifying the appropriate regulatory approval pathway are discussed here with cautionary case studies. Complex new technologies which combine diagnostics and drugs, or devices and software, or AI-based dynamic software are reviewed here. The best approach to the appropriate regulatory pathway will be clear after reading this chapter. Case studies are used to show successful pathways taken by cutting-edge developments, such as cell-based therapy.
Transform your research into commercial biomedical products with this revised and updated second edition. Covering drugs, devices and diagnostics, this book provides a step-by-step introduction to the process of commercialization, and will allow you to create a realistic business plan to develop your ideas into approved biomedical technologies. This new edition includes: Over 25% new material, including practical tips on startup creation from experienced entrepreneurs. Tools for starting, growing and managing a new venture, including business planning and commercial strategy, pitching investors, and managing operations.Global real-world case studies, including emerging technologies such as regulated medical software and Artificial Intelligence (AI), offer insights into key challenges and help illustrate complex points. Tips and operational tools from established industry insiders, suitable for graduate students and new biomedical entrepreneurs.
Computerized neglect tests could significantly deepen our disorder-specific knowledge by effortlessly providing additional behavioral markers that are hardly or not extractable from existing paper-and-pencil versions. This study investigated how testing format (paper versus digital), and screen size (small, medium, large) affect the Center of cancelation (CoC) in right-hemispheric stroke patients in the Letters and the Bells cancelation task. Our second objective was to determine whether a machine learning approach could reliably classify patients with and without neglect based on their search speed, search distance, and search strategy.
Method:
We compared the CoC measure of right hemisphere stroke patients with neglect in two cancelation tasks across different formats and display sizes. In addition, we evaluated whether three additional parameters of search behavior that became available through digitization are neglect-specific behavioral markers.
Results:
Patients’ CoC was not affected by test format or screen size. Additional search parameters demonstrated lower search speed, increased search distance, and a more strategic search for neglect patients than for control patients without neglect.
Conclusion:
The CoC seems robust to both test digitization and display size adaptations. Machine learning classification based on the additional variables derived from computerized tests succeeded in distinguishing stroke patients with spatial neglect from those without. The investigated additional variables have the potential to aid in neglect diagnosis, in particular when the CoC cannot be validly assessed (e.g., when the test is not performed to completion).
Emerging neurotechnology offers increasingly individualised brain information, enabling researchers to identify mental states and content. When accurate and valid, these brain-reading technologies also provide data that could be useful in criminal legal procedures, such as memory detection with EEG and the prediction of recidivism with fMRI. Yet, unlike in medicine, individuals involved in criminal cases will often be reluctant to undergo brain-reading procedures. This raises the question of whether coercive brain-reading could be permissible in criminal law. Coercive Brain-Reading in Criminal Justice examines this question in view of European human rights: the prohibition of ill treatment, the right to privacy, freedom of thought, freedom of expression, and the privilege against self-incrimination. The book argues that, at present, the established framework of human rights does not exclude coercive brain-reading. It does, however, delimit the permissible use of forensic brain-reading without valid consent. This cautionary, cutting-edge book lays a crucial foundation for understanding the future of criminal legal proceedings in a world of ever-advancing neurotechnology.
A solid QCA does not end with the analytic moment. Researchers must make several analytic decisions at various stages in the analysis, some with more confidence than others. Researchers might also be confronted with data that are structured in analytically relevant ways. For example, cases might group into different geographic, substantive, or temporal clusters, or there might be relevant causal dependencies or sequences among conditions.
This chapter introduces the different robustness and diagnostic tools available in R to assess QCA results. It enables the reader to investigate to what extent their QCA results are robust against equally plausible analytic decisions regarding the selection of calibration anchors or consistency and frequency cut-offs. We present possibilities to assess robustness in R. Moreover, we introduce tools for cluster diagnostics and discuss strategies for dealing with timing and temporality, including ‘coincidence analysis’ (CNA).
Learning goals:
- Basic understanding of different approaches to diagnosing and assessing QCA results.
- Familiarity with how the robustness of QCA results to different analytical decisions can be assessed.
- Familiarity with proposals on how to assess QCA results in the presence of clustered data.
- Familiarity with how to model sequences and causal chains in R.
The causes of delayed post-traumatic stress disorder (PTSD) are debated, and the validity of late-onset PTSD has been questioned.
Aims
We aimed to examine predictors of delayed PTSD in a community sample of survivors of a natural disaster.
Method
Norwegian survivors of the 2004 Indian Ocean tsunami (n = 532) responded to a questionnaire at 6 and 24 months post-disaster. The questionnaire measured PTSD symptoms, recalled exposure and immediate stress responses to the disaster, recalled perceived life threat, personality dimensions, social support and other subsequent adverse life events.
Results
When dichotomising PTSD symptom scores, 331 participants had low and 194 had high PTSD scores (early-onset PTSD) at 6 months. Of those with initially low scores, 43 (13.0%) had high symptom scores (delayed PTSD) at 24 months. The delayed PTSD group had a lower degree of initially assessed threat and witness experiences of death or suffering, lower immediate stress response and higher degree of memory inflation of perceived threat than the early-onset PTSD group. Among those with low PTSD scores at 6 months, onset of delayed PTSD was associated with neuroticism and memory inflation of life threat, but not with the degree of initially assessed disaster exposure or reports of subsequent adverse life events.
Conclusions
Lack of association between trauma exposure and delayed onset of PTSD symptoms casts doubt on whether the traumatic event is actually the primary causative factor for delayed PTSD. Our findings suggest that delayed PTSD may be a manifestation of personality factors and memory inflation of the severity of an event.
Increased antimicrobial resistance in bovine respiratory bacterial pathogens poses a threat to the effective control and prevention of bovine respiratory disease (BRD). As part of continued efforts to develop antimicrobial alternatives to mitigate BRD, the microbial community residing within the respiratory tract of feedlot cattle has been increasingly studied using next-generation sequencing technologies. The mucosal surfaces of upper and lower respiratory tracts of cattle are colonized by a diverse and dynamic microbiota encompassing commensal, symbiotic, and pathogenic bacteria. While a direct causal relationship between respiratory microbiota and the development of BRD in feedlot cattle has not been fully elucidated, increasing evidence suggests that the microbiota contributes to respiratory health by providing colonization resistance against pathogens and maintaining homeostasis. Certain management practices such as weaning, transportation, feed transition, and antibiotic application can disrupt the respiratory microbiota, potentially altering pathogen colonization. Microbiota-based approaches, including bacterial therapeutics that target restoring the normal respiratory microbiota, may provide new methods for mitigating BRD in feedlot cattle in place of antibiotics. In addition, the distinct bacterial respiratory microbial communities observed in BRD-affected and healthy feedlot cattle may allow for future application of microbiota-based techniques used in the diagnosis of BRD.