Comment diagnostiquer la photosynthèse chez les plantes ?

On évalue la production d'oxygène et l'absorption de CO2 en conditions contrôlées.

Quels tests pour mesurer la transpiration des plantes ?

On utilise des pots de pesée pour mesurer la perte d'eau par évaporation.

Comment évaluer la respiration des plantes ?

On mesure la consommation d'oxygène et la production de CO2 dans un environnement fermé.

Quels indicateurs de stress hydrique chez les plantes ?

On observe le flétrissement, la décoloration des feuilles et la chute prématurée des fleurs.

Comment détecter la photosensibilité des plantes ?

On observe les mouvements des feuilles et la direction de croissance en fonction de la lumière.

Quels symptômes d'une carence en azote chez les plantes ?

Les feuilles jaunissent et se dessèchent, surtout les plus anciennes.

Comment reconnaître une carence en potassium ?

Les feuilles présentent des bords bruns et des taches nécrotiques.

Quels signes d'excès d'eau chez les plantes ?

Les racines pourrissent, les feuilles jaunissent et la plante flétrit.

Quels symptômes d'une carence en phosphore ?

Les plantes montrent un retard de croissance et des feuilles violettes.

Comment identifier un stress thermique chez les plantes ?

Les feuilles se recroquevillent, et la croissance est ralentie.

Comment prévenir les carences en nutriments ?

Utiliser des engrais équilibrés et effectuer des analyses de sol régulières.

Quelles pratiques pour éviter le stress hydrique ?

Installer un système d'irrigation et mulcher le sol pour conserver l'humidité.

Comment prévenir les maladies des plantes ?

Assurer une bonne circulation de l'air et éviter l'humidité excessive.

Quelles mesures pour éviter l'excès d'eau ?

Utiliser des pots avec drainage et éviter les arrosages excessifs.

Comment prévenir le stress thermique ?

Fournir de l'ombre et arroser les plantes pendant les périodes chaudes.

Comment traiter une carence en nutriments ?

Appliquer des engrais spécifiques selon le nutriment manquant.

Quelles solutions pour le stress hydrique ?

Augmenter l'arrosage et améliorer le drainage du sol.

Comment remédier à un excès d'eau ?

Réduire l'arrosage et améliorer l'aération du sol.

Quelles méthodes pour améliorer la photosynthèse ?

Optimiser l'éclairage et la concentration de CO2 dans l'environnement.

Comment traiter les maladies fongiques des plantes ?

Utiliser des fongicides appropriés et retirer les parties infectées.

Quelles complications d'une carence en azote ?

Peut entraîner un retard de croissance et une faible production de fruits.

Quels risques d'un excès d'eau ?

Peut provoquer la pourriture des racines et la mort de la plante.

Quelles complications d'un stress hydrique prolongé ?

Peut entraîner la défoliation et la mort des plantes.

Quels effets d'une carence en phosphore ?

Peut réduire la floraison et la fructification des plantes.

Quelles complications d'un stress thermique ?

Peut causer des brûlures foliaires et un affaiblissement général.

Quels facteurs augmentent le risque de carences ?

Un sol pauvre, une mauvaise gestion de l'eau et un manque d'engrais.

Comment le climat influence-t-il la photosynthèse ?

Des températures extrêmes et un manque de lumière peuvent réduire la photosynthèse.

Quels facteurs augmentent le stress hydrique ?

Des périodes de sécheresse prolongées et un sol mal drainé augmentent le stress.

Comment la pollution affecte-t-elle les plantes ?

La pollution de l'air et du sol peut nuire à la croissance et à la santé des plantes.

Quels facteurs de risque pour les maladies fongiques ?

L'humidité élevée et le manque de circulation d'air favorisent les maladies fongiques.

Phénomènes physiologiques des plantes - Informations médicales vérifiées

Outcomes of problem-based learning in nurse education: A systematic review and meta-analysis.

Jan 2023

DOI: 10.1016/j.nedt.2022.105631 PMID: 36427452

To investigate the effectiveness of problem-based learning (PBL) in nursing students, including recently reported trials.... Meta-analysis was performed to obtain summary conclusions on the influence of PBL on nursing students' learning outcomes.... Academic Search Complete, CINAHL, Cochrane Library, EMBASE, MEDLINE, PubMed, and Web of Science were searched for relevant studies from the period between database inception and March 3, 2022.... A random-effects model was used to generate pooled standardized mean differences (SMD) for critical thinking, problem-solving, and self-confidence. The heterogeneity of each variable in the pooled est... Overall, PBL had a greater positive effect than traditional learning on critical thinking (SMD: 0.44; 95 % CI: 0.14-0.73), analysis (SMD: 0.72; 95 % CI: 0.84-1.25), and evaluation (SMD: 0.33; 95 % CI:... PBL appears to improve nursing students' critical thinking skills, especially their ability to analyze and evaluate. The findings of this study may be used as evidence of PBL being a more effective me...

Humans Problem-Based Learning Students, Nursing Education, Nursing, Baccalaureate Thinking +1 autres

Implementation of mind mapping with problem-based learning in prosthodontics course for Chinese dental students.

25 Jul 2023

DOI: 10.1186/s12909-023-04479-8 PMID: 37491283

The traditional Chinese dentistry classroom teaching model focuses on the instruction of knowledge details, but less on the frameworks and learners' motivation. Here, we introduced a combination of mi... We prospectively enrolled 56 fourth-year undergraduates of stomatology, and these participants were randomly allocated into either the combined mind map teaching group (MBL) or the problem-based learn... The students' responses to closed items indicate their experience in PBL and MBL to be positive, including increased motivation, improved memory of knowledge, enhanced discipline connection and raised... Our findings suggest that MBL teaching approach can help in integration of knowledge structure and enhance clinical reasoning. MBL is an effective and well-organized method in prosthodontics course fo...

Humans East Asian People Learning Problem-Based Learning Prosthodontics +4 autres

Effect of problem-based learning tutor seniority on medical students' emotions: an equivalence study.

07 Jun 2023

DOI: 10.1186/s12909-023-04416-9 PMID: 37286967

The effectiveness of peer learning has been recognized and discussed by many scholars, and implemented in the formal curriculums of medical schools internationally. However, there is a general dearth ... We investigated the objective effect of near-peer learning on tutee's emotions and its equivalence within the formal curriculum of a clinical reasoning Problem Based Learning session in a Japanese med... Of the 143 eligible participant students, 90 were allocated to the peer tutor group and 53 were allocated to the faculty group. There was no significant difference between the groups. The 95% confiden... Emotional outcomes were equivalent between near-peer PBL sessions and faculty-led sessions. This comparative measurement of the emotional outcomes in near-peer learning contributes to understanding PB...

Humans Problem-Based Learning Students, Medical Education, Medical, Undergraduate Curriculum +1 autres

Barriers to implementing problem-based learning at the school of medicine of Debre Berhan University, Ethiopia.

06 May 2024

DOI: 10.1186/s12909-024-05252-1 PMID: 38711080

Implementing PBL in teaching and learning can be challenging due to a variety of complex barriers. Studies on barriers to the implementation of problem-based learning in Ethiopia are scarce. This stud... A qualitative study was conducted among faculty and medical students at the medical school. Purposive sampling was used to select participants. Semi-structured interviews were conducted with tutors an... The study identified student-related, tutor-related, case scenario-related, and assessment-related barriers as the most significant obstacles to implementing problem-based learning. These barriers inc... Lack of both tutor and student commitment, lack of standardized cases, absence of a recognition of staff input, gap in communication skills, work overload, lack of continuous training, and at-spot eva...

Ethiopia Problem-Based Learning Humans Students, Medical Qualitative Research +7 autres

Training doctoral students in critical thinking and experimental design using problem-based learning.

16 Aug 2023

DOI: 10.1186/s12909-023-04569-7 PMID: 37587476

Traditionally, doctoral student education in the biomedical sciences relies on didactic coursework to build a foundation of scientific knowledge and an apprenticeship model of training in the laborato... Evaluation of course effectiveness was measured using the principals of the Kirkpatrick Four Level Model of Evaluation. At the end of each course offering, students completed evaluation surveys on the... The analysis of the outcomes of the course suggests the training is effective in improving experimental design. The course was well received by the students as measured by student evaluations (Kirkpat... This problem-based learning course appears effective in training newly matriculated graduate students in the required skills for designing experiments to test specific hypotheses, enhancing student pr...

Humans Problem-Based Learning Research Design Students Thinking +1 autres

Enhancing medical education in respiratory diseases: efficacy of a 3D printing, problem-based, and case-based learning approach.

17 Jul 2023

DOI: 10.1186/s12909-023-04508-6 PMID: 37461009

The present study aims to investigate the efficacy of utilizing three-dimensional (3D) printing technology in concert with Problem-Based Learning (PBL) and Case-Based Learning (CBL) pedagogical approa... A cohort of 422 fourth-year clinical medicical students of from Anhui Medical University, pursuing a five-year program, were arbitrarily segregated into two distinct groups. The experimental group was... Post-quiz scores indicated a statistically significant improvement in the DPC group as compared to the traditional group (P < 0.01). Self-evaluation and satisfaction questionnaires revealed that the D... The deployment of the DPC pedagogical approach may confer unique experiential learning opportunities for students, potentially enhancing theoretical test scores and promoting self-evaluation and satis...

Humans Problem-Based Learning Education, Medical Students, Medical Printing, Three-Dimensional +1 autres

Opioid-Obviating Analgesia for Adolescent Multilevel Spinal Fusion Surgery: A Problem-Based Learning Discussion.

01 Jul 2024

DOI: 10.1213/XAA.0000000000001823 PMID: 38989903

A female teenager with a history of polysubstance use, including a recent overdose, is scheduled for multilevel posterior spinal fusion surgery due to idiopathic scoliosis and has asked to avoid the u...

Humans Spinal Fusion Adolescent Female Analgesics, Opioid +4 autres

Students' perception of problem-based learning at a Japanese medical school: an exploratory sequential mixed method.

26 Dec 2022

DOI: 10.5116/ijme.6399.dee1 PMID: 36571846

This study aimed to assess the perception of PBL among Japanese medical students.... Learning effects and challenges of PBL from the students' viewpoint were assessed with an exploratory sequential mixed method. Focus group discussions followed by thematic analysis were conducted with... Thematic analysis extracted 14 themes from four discussion topics. The participants in focus group discussion regarded the PBL program as a better learning method than lectures. But some key phrases o...

Humans Problem-Based Learning Schools, Medical East Asian People Students, Medical +1 autres

An e-Problem-Based Learning Program for Infection Control in Nursing Homes: A Quasi-Experimental Study.

16 10 2022

DOI: 10.3390/ijerph192013371 PMID: 36293952

Infection is a significant factor adversely affecting the health of nursing home (NH) residents, potentially even leading to death. Therefore, educating NH staff to think critically is necessary to pr...

Humans Problem-Based Learning Students, Nursing Thinking Nursing Homes +1 autres

The benefits of using atypical presentations and rare diseases in problem-based learning in undergraduate medical education.

06 Feb 2023

DOI: 10.1186/s12909-023-04079-6 PMID: 36747223

The nature of student learning in problem-based learning (PBL) largely depends on the quality of the case scenarios presented to them. The effect of case scenarios with higher challenge degree, especi... After finishing four CDTS case scenarios, 294 third-year medical students were randomly allocated into three groups: CDTS, CDAS and RD, studying via CDTS, CDAS and RD case scenarios, respectively. A q... Among the three PBL conditions, the ones with a higher degree of challenge were rated higher by the students, which included the quality of the case scenarios and the overall performances of the stude... Of all the three kinds of case scenarios, both CDTS interspersed with CDAS and RD case scenarios had more positive effects on the self-evaluated performance of students. Increasing the challenge and v...

Humans Problem-Based Learning Rare Diseases Education, Medical, Undergraduate Curriculum +2 autres

Phénomènes physiologiques des plantes : Questions médicales fréquentes

Termes MeSH sélectionnés :

Sous-catégories

Résistance à la sécheresse

Gamétogenèse de plante

Perception de la gravité

Organogenèse des plantes

Parthénogenèse

Photosynthèse

Défense des plantes contre les herbivores

Développement des plantes

Maladies des plantes

Dispersion des plantes

Immunité des plantes

Stérilité des plantes

Nodulation racinaire

Techniques d'embryogenèse somatique végétale

Transpiration des plantes

Pollinisation

Dispersion des graines

Autofécondation

Auto-incompatibilité chez les plantes à fleurs

Tropisme

Apomixie

Métabolisme acide crassulacéen

Photophosphorylation

Étiolement

Germination

Sénescence des plantes

Maladie à phytoplasme

Nécrose et chlorose des plantes

Tumeurs végétales

Résistance à la maladie

Résistance systémique induite des plantes

Gravitropisme

Phototropisme

Dormance des plantes

Sources (10000 au total)