Titre : Biodiversité

Biodiversité : Questions médicales fréquentes

Termes MeSH sélectionnés :

Image Processing, Computer-Assisted
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"@type": "Question", "name": "Quels outils mesurent la biodiversité ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des outils comme les systèmes d'information géographique (SIG) et les bases de données biologiques." } }, { "@type": "Question", "name": "Quelles méthodes d'échantillonnage sont utilisées ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Les méthodes incluent les transects, les quadrats et les pièges à insectes." } }, { "@type": "Question", "name": "Comment identifier une espèce menacée ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "On évalue son statut de conservation via des critères comme la taille de la population." } }, { "@type": "Question", "name": "Quels indicateurs montrent la perte de biodiversité ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Les indicateurs incluent la diminution des espèces, la dégradation des habitats et l'extinction." } }, { "@type": "Question", "name": "Quels signes indiquent une perte de biodiversité ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Des signes incluent la raréfaction des espèces, la dégradation des habitats et l'extinction." } }, { "@type": "Question", "name": "Comment la biodiversité affecte-t-elle la santé humaine ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Une biodiversité réduite peut entraîner des maladies, des allergies et des problèmes nutritionnels." } }, { "@type": "Question", "name": "Quels impacts sur l'agriculture ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "La perte de biodiversité peut réduire la pollinisation et augmenter la vulnérabilité aux ravageurs." } }, { "@type": "Question", "name": "Quels effets sur les écosystèmes aquatiques ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "La perte de biodiversité aquatique entraîne des déséquilibres, affectant la qualité de l'eau." } }, { "@type": "Question", "name": "Quels symptômes d'un écosystème dégradé ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Des symptômes incluent la pollution, la perte d'habitats et la diminution des espèces." } }, { "@type": "Question", "name": "Comment prévenir la perte de biodiversité ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "On peut prévenir la perte par la protection des habitats, la réduction de la pollution et la gestion durable." } }, { "@type": "Question", "name": "Quel rôle joue l'éducation environnementale ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "L'éducation sensibilise le public aux enjeux de la biodiversité et encourage des comportements responsables." } }, { "@type": "Question", "name": "Comment réduire l'empreinte écologique ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Réduire l'empreinte par des choix de consommation durables, le recyclage et l'utilisation d'énergies renouvelables." } }, { "@type": "Question", "name": "Quels sont les impacts des espèces invasives ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Les espèces invasives menacent la biodiversité en perturbant les écosystèmes et en éliminant les espèces locales." } }, { "@type": "Question", "name": "Comment promouvoir l'agriculture durable ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Promouvoir l'agriculture durable par des pratiques comme la rotation des cultures et l'agroécologie." } }, { "@type": "Question", "name": "Comment restaurer la biodiversité ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "On peut restaurer la biodiversité par la reforestation, la création de réserves et la régénération des habitats." } }, { "@type": "Question", "name": "Quelles politiques soutiennent la biodiversité ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Des politiques incluent la protection des habitats, les lois sur la conservation et les accords internationaux." } }, { "@type": "Question", "name": "Comment les ONG contribuent-elles ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Les ONG sensibilisent, financent des projets de conservation et militent pour des politiques durables." } }, { "@type": "Question", "name": "Quels programmes de conservation existent ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Des programmes incluent les réserves naturelles, les corridors écologiques et les projets de réintroduction." } }, { "@type": "Question", "name": "Comment impliquer les communautés locales ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Impliquer les communautés par l'éducation, la participation à des projets et le partage des bénéfices." } }, { "@type": "Question", "name": "Quelles sont les conséquences de la perte de biodiversité ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Les conséquences incluent la dégradation des écosystèmes, la perte de services écosystémiques et des crises alimentaires." } }, { "@type": "Question", "name": "Comment la perte de biodiversité affecte-t-elle le climat ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "La perte de biodiversité peut aggraver le changement climatique en réduisant la résilience des écosystèmes." } }, { "@type": "Question", "name": "Quels risques pour la santé publique ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "La perte de biodiversité peut augmenter les risques de maladies infectieuses et de zoonoses." } }, { "@type": "Question", "name": "Quelles sont les implications économiques ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Les implications économiques incluent la perte de ressources naturelles et l'impact sur l'agriculture et le tourisme." } }, { "@type": "Question", "name": "Comment la biodiversité influence-t-elle la sécurité alimentaire ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Une biodiversité riche assure des cultures variées et résilientes, essentielles pour la sécurité alimentaire." } }, { "@type": "Question", "name": "Quels facteurs menacent la biodiversité ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent la destruction des habitats, la pollution, le changement climatique et les espèces invasives." } }, { "@type": "Question", "name": "Quel rôle joue l'urbanisation ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "L'urbanisation entraîne la fragmentation des habitats et la perte d'espaces naturels, menaçant la biodiversité." } }, { "@type": "Question", "name": "Comment l'agriculture intensive impacte-t-elle la biodiversité ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "L'agriculture intensive réduit la diversité des cultures et des habitats, augmentant les risques d'érosion génétique." } }, { "@type": "Question", "name": "Quels effets du changement climatique ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Le changement climatique modifie les habitats, provoquant des migrations d'espèces et des extinctions." } }, { "@type": "Question", "name": "Comment la pollution affecte-t-elle la biodiversité ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "La pollution de l'air, de l'eau et des sols nuit aux espèces et dégrade les écosystèmes, menaçant la biodiversité." } } ] } ] }

Sources (10000 au total)

An unsupervised image registration method employing chest computed tomography images and deep neural networks.

Deformable image registration is crucial for multiple radiation therapy applications. Fast registration of computed tomography (CT) lung images is challenging because of the large and nonlinear deform... In this study, an unsupervised lung registration network (LRN) with cycle-consistent training is proposed to align two acquired CT-derived lung datasets during breath-holds at inspiratory and expirato... The results showed that the LRN with an average TRE of 1.78 ± 1.56 mm outperformed VoxelMorph with an average TRE of 2.43 ± 2.43 mm, which is comparable to that of SSTVD with an average TRE of 1.66 ± ... Therefore, this proposed method shows significant potential for use in time-sensitive pulmonary studies, such as lung motion tracking and image-guided surgery....

Deep learning image reconstruction algorithm: impact on image quality in coronary computed tomography angiography.

To perform a comprehensive intraindividual objective and subjective image quality evaluation of coronary CT angiography (CCTA) reconstructed with deep learning image reconstruction (DLIR) and to asses... Fifty-one patients (29 males) undergoing clinically indicated CCTA from April to December 2021 were prospectively enrolled. Fourteen datasets were reconstructed for each patient: three DLIR strength l... DLIR algorithm did not impact vascular attenuation (P ≥ 0.374). DLIR_H showed the lowest noise, comparable with ASiR-V 100% (P = 1) and significantly lower than other reconstructions (P ≤ 0.021). DLIR... DLIR_M significantly improves CCTA image quality and has very strong correlation with routinely applied ASiR-V 50% dataset in the diagnosis of CAD....

Automatic detection of A-line in lung ultrasound images using deep learning and image processing.

Auxiliary diagnosis and monitoring of lung diseases based on lung ultrasound (LUS) images is important clinical research. A-line is one of the most common indicators of LUS that can offer support for ... In order to solve the disadvantages of traditional A-line detection methods, realize automatic and accurate detection, and provide theoretical support for clinical application, we proposed a novel A-l... First, the improved Faster R-CNN model with a selection strategy of localization box was designed to accurately locate the pleural line. Then, the LUS image below the pleural line was segmented for in... After 100 epochs, the mean loss value of training and validation set of improved Faster R-CNN model reached 0.6540 and 0.7882, with the validation accuracy of 98.70%. The trained pleural line localiza... The proposed method combining image processing and deep learning can automatically and accurately detect A-line in LUS images with different probe types, which has important application value for clin...