Development, production and performance testing of a three axes CNC router

Nowadays there are Computer Numerical Control (CNC) machines with up to 9 axes, which allow the fabrication of high complexity parts in a single machining operation. However, considering the cost and difficulty to operate, such machines are inadequate for most users. Even though there are very affordable options on the market, these are very limited in usable work volume and cutting capabilities. The present work focuses on the development and fabrication of a three axes CNC router that shows a good performance/cost relation. The performance can be translated as a combi-nation of a high volume of work with a good cutting precision and accuracy. The cutting pre-cision and accuracy are verified through a set of experiments designed for that purpose. The results obtained evidence that user with experience in building equipment can, with relative ease, create CNC routers as the one developed in this work. Additionally, a fourth axis was also considered for a future iteration of the machine.Atualmente existem máquinas controladas numericamente por computador (CNC) com até nove eixos, as quais permitem fabricar peças com elevada complexidade com uma única operação de fixação. No entanto, dado o custo e a dificuldade de operação destas máquinas para muitos utilizadores estes equipamentos são desadequados. Por outro lado, existem no mercado máquinas ferramentas a custos acessíveis, mas que tendem a ser muito limitadas quanto ao volume de trabalho e à capacidade de corte. O trabalho desenvolvido centra-se no desenvolvimento e na fabricação de uma fresa-dora CNC de três eixos que apresente uma boa relação desempenho custo. O desempenho traduz-se na conjugação de um grande volume de trabalho com uma boa exatidão de corte. A exatidão do corte verifica-se através de um conjunto de ensaios elaborados com esse propósito. Os resultados obtidos evidenciam que os utilizadores com boa experiência na construção de equipamentos podem, com relativa facilidade, implementar fresadoras como a desenvolvida neste trabalho. Foi também considerada a implementação de um quarto eixo numa próxima versão da fresadora

A meta-ethnography about suffering in burned patients and their families

info:eu-repo/semantics/publishedVersio

What do we know about experiencing the end-of-life in burn intensive care units? a scoping review

Objectives: To review and synthetize the evidence on end-of-life in burn intensive care units about (i) the characteristics of end-of-life in burn intensive care units, (ii) the symptom control provided to burned patients facing dying and death in this context, and (iii) the concept, models and designs of the care provided. Methods: Systematically conducted scoping review, following Arksey and O'Malley's framework. Preferred Reporting Items for Systemic Reviews extension for Scoping Reviews was used as a reporting guideline. Searches were performed in three databases, with no time restriction and up to September 2021. Results: 16,287 documents identified; thirteen (13) selected for analysis and synthesis. Three key themes emerged: (i) characteristics of the end-of-life in burn intensive care units, including end-of-life decisions, decision-making processes, causes and trajectories of death; (ii) symptom control at the end-of-life in burn intensive care units focusing on patients’ comfort; and (iii) concepts, models, and designs of the care provided to burned patients at the end-of-life, mainly care approaches, provision of care and palliative care.Significance of Results: End-of-life care is a major step in the care provided to critically ill burned patients. Dying and death in burn intensive care units are often preceded by end-of-life decisions, namely forgoing treatment, and do-not-attempt to resuscitate. Different dying trajectories were described, suggesting the possibility to develop further studies to identify triggers for palliative care referral. Symptom control was not described in detail. Palliative care was rarely involved in end-of-life care for these patients. This review highlights the need for early and high-quality palliative and end-of-life care in the trajectories of critically ill burned patients, leading to an improved perception of end-of-life in burn intensive care units. Further research is needed to study the best way to provide optimal end-of-life care and foster integrated palliative care in burn intensive care units.info:eu-repo/semantics/publishedVersio

MAMMALS IN PORTUGAL : A data set of terrestrial, volant, and marine mammal occurrences in P ortugal

Mammals are threatened worldwide, with 26% of all species being includedin the IUCN threatened categories. This overall pattern is primarily associatedwith habitat loss or degradation, and human persecution for terrestrial mam-mals, and pollution, open net fishing, climate change, and prey depletion formarine mammals. Mammals play a key role in maintaining ecosystems func-tionality and resilience, and therefore information on their distribution is cru-cial to delineate and support conservation actions. MAMMALS INPORTUGAL is a publicly available data set compiling unpublishedgeoreferenced occurrence records of 92 terrestrial, volant, and marine mam-mals in mainland Portugal and archipelagos of the Azores and Madeira thatincludes 105,026 data entries between 1873 and 2021 (72% of the data occur-ring in 2000 and 2021). The methods used to collect the data were: live obser-vations/captures (43%), sign surveys (35%), camera trapping (16%),bioacoustics surveys (4%) and radiotracking, and inquiries that represent lessthan 1% of the records. The data set includes 13 types of records: (1) burrowsjsoil moundsjtunnel, (2) capture, (3) colony, (4) dead animaljhairjskullsjjaws, (5) genetic confirmation, (6) inquiries, (7) observation of live animal (8),observation in shelters, (9) photo trappingjvideo, (10) predators dietjpelletsjpine cones/nuts, (11) scatjtrackjditch, (12) telemetry and (13) vocalizationjecholocation. The spatial uncertainty of most records ranges between 0 and100 m (76%). Rodentia (n=31,573) has the highest number of records followedby Chiroptera (n=18,857), Carnivora (n=18,594), Lagomorpha (n=17,496),Cetartiodactyla (n=11,568) and Eulipotyphla (n=7008). The data setincludes records of species classified by the IUCN as threatened(e.g.,Oryctolagus cuniculus[n=12,159],Monachus monachus[n=1,512],andLynx pardinus[n=197]). We believe that this data set may stimulate thepublication of other European countries data sets that would certainly contrib-ute to ecology and conservation-related research, and therefore assisting onthe development of more accurate and tailored conservation managementstrategies for each species. There are no copyright restrictions; please cite thisdata paper when the data are used in publications.info:eu-repo/semantics/publishedVersio

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Mammals in Portugal: a data set of terrestrial, volant, and marine mammal occurrences in Portugal

Mammals are threatened worldwide, with ~26% of all species being included in the IUCN threatened categories. This overall pattern is primarily associated with habitat loss or degradation, and human persecution for terrestrial mammals, and pollution, open net fishing, climate change, and prey depletion for marine mammals. Mammals play a key role in maintaining ecosystems functionality and resilience, and therefore information on their distribution is crucial to delineate and support conservation actions. MAMMALS IN PORTUGAL is a publicly available data set compiling unpublished georeferenced occurrence records of 92 terrestrial, volant, and marine mammals in mainland Portugal and archipelagos of the Azores and Madeira that includes 105,026 data entries between 1873 and 2021 (72% of the data occurring in 2000 and 2021). The methods used to collect the data were: live observations/captures (43%), sign surveys (35%), camera trapping (16%), bioacoustics surveys (4%) and radiotracking, and inquiries that represent less than 1% of the records. The data set includes 13 types of records: (1) burrows | soil mounds | tunnel, (2) capture, (3) colony, (4) dead animal | hair | skulls | jaws, (5) genetic confirmation, (6) inquiries, (7) observation of live animal (8), observation in shelters, (9) photo trapping | video, (10) predators diet | pellets | pine cones/nuts, (11) scat | track | ditch, (12) telemetry and (13) vocalization | echolocation. The spatial uncertainty of most records ranges between 0 and 100 m (76%). Rodentia (n =31,573) has the highest number of records followed by Chiroptera (n = 18,857), Carnivora (n = 18,594), Lagomorpha (n = 17,496), Cetartiodactyla (n = 11,568) and Eulipotyphla (n = 7008). The data set includes records of species classified by the IUCN as threatened (e.g., Oryctolagus cuniculus [n = 12,159], Monachus monachus [n = 1,512], and Lynx pardinus [n = 197]). We believe that this data set may stimulate the publication of other European countries data sets that would certainly contribute to ecology and conservation-related research, and therefore assisting on the development of more accurate and tailored conservation management strategies for each species. There are no copyright restrictions; please cite this data paper when the data are used in publications

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Integrating palliative care in intensive care burn units: a systematically conducted scoping review

info:eu-repo/semantics/publishedVersio

Do patients, families, and healthcare teams benefit from the integration of palliative care in burn intensive care units? Results from a systematic review with narrative synthesis

Background: Burn units are intensive care facilities specialized in the treatment of patients with severe burns. As burn injuries have a major impact in physical, psychosocial, and spiritual health, palliative care can be a strengthening component of integrated care. Aim: To review and appraise the existing evidence about the integration of palliative care in burn intensive care units with respect to (1) the concept, model and design and (2) the benefits and outcomes of this integration. Design: A systematic review was conducted following PRISMA guidelines. Protocol registered with PROSPERO (CRD42018111676). Data sources: Five electronic databases were searched (PubMed/NLM, Web of Science, MEDLINE/TR, Ovid, and CINAHL/EBSCO) until May 2019. A narrative synthesis of the findings was constructed. Hawker et al.'s tool was used for quality appraisal. Results: A total of 299 articles were identified, of which five were included for analysis involving a total of 7353 individuals. Findings suggest that there may be benefits from integrating palliative care in burn units, specifically in terms of patients' comfort, decision-making processes, and family care. Multidisciplinary teams may experience lower levels of burden as result of integrating palliative care in burn units. Conclusion: This review reflects the challenging setting of burn intensive care units. Evidence from these articles suggests that the integration of palliative care in burn intensive care units improves patients' comfort, decision-making process, and family care. Further research is needed to better understand how the integration of palliative care in burn intensive care units may be fostered and to identify the outcomes of this integration.N/