{
"@context": "https://schema.org",
"@graph": [
{
"@type": "MedicalWebPage",
"name": "Dénitrification : Questions médicales les plus fréquentes",
"headline": "Dénitrification : Comprendre les symptômes, diagnostics et traitements",
"description": "Guide complet et accessible sur les Dénitrification : explications, diagnostics, traitements et prévention. Information médicale validée destinée aux patients.",
"datePublished": "2024-02-27",
"dateModified": "2025-02-21",
"inLanguage": "fr",
"medicalAudience": [
{
"@type": "MedicalAudience",
"name": "Grand public",
"audienceType": "Patient",
"healthCondition": {
"@type": "MedicalCondition",
"name": "Dénitrification"
},
"suggestedMinAge": 18,
"suggestedGender": "unisex"
},
{
"@type": "MedicalAudience",
"name": "Médecins",
"audienceType": "Physician",
"geographicArea": {
"@type": "AdministrativeArea",
"name": "France"
}
},
{
"@type": "MedicalAudience",
"name": "Chercheurs",
"audienceType": "Researcher",
"geographicArea": {
"@type": "AdministrativeArea",
"name": "International"
}
}
],
"reviewedBy": {
"@type": "Person",
"name": "Dr Olivier Menir",
"jobTitle": "Expert en Médecine",
"description": "Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale",
"url": "/static/pages/docteur-olivier-menir.html",
"alumniOf": {
"@type": "EducationalOrganization",
"name": "Université Paris Descartes"
}
},
"isPartOf": {
"@type": "MedicalWebPage",
"name": "Cycle de l'azote",
"url": "https://questionsmedicales.fr/mesh/D058458",
"about": {
"@type": "MedicalCondition",
"name": "Cycle de l'azote",
"code": {
"@type": "MedicalCode",
"code": "D058458",
"codingSystem": "MeSH"
},
"identifier": {
"@type": "PropertyValue",
"propertyID": "MeSH Tree",
"value": "G16.500.768"
}
}
},
"about": {
"@type": "MedicalCondition",
"name": "Dénitrification",
"alternateName": "Denitrification",
"code": {
"@type": "MedicalCode",
"code": "D058440",
"codingSystem": "MeSH"
}
},
"author": [
{
"@type": "Person",
"name": "Xiaoxuan Su",
"url": "https://questionsmedicales.fr/author/Xiaoxuan%20Su",
"affiliation": {
"@type": "Organization",
"name": "Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen361021, China."
}
},
{
"@type": "Person",
"name": "Qian Zhang",
"url": "https://questionsmedicales.fr/author/Qian%20Zhang",
"affiliation": {
"@type": "Organization",
"name": "Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; College of Environment and Ecology, Chongqing University, Chongqing 400045, China."
}
},
{
"@type": "Person",
"name": "Qiong Zhang",
"url": "https://questionsmedicales.fr/author/Qiong%20Zhang",
"affiliation": {
"@type": "Organization",
"name": "National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China."
}
},
{
"@type": "Person",
"name": "Lijun Hou",
"url": "https://questionsmedicales.fr/author/Lijun%20Hou",
"affiliation": {
"@type": "Organization",
"name": "State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai200062, China."
}
},
{
"@type": "Person",
"name": "Hui Chen",
"url": "https://questionsmedicales.fr/author/Hui%20Chen",
"affiliation": {
"@type": "Organization",
"name": "School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China."
}
}
],
"citation": [
{
"@type": "ScholarlyArticle",
"name": "Cut-off point, sensitivity and specificity for screening the reading fluency in children.",
"datePublished": "2023-06-02",
"url": "https://questionsmedicales.fr/article/37283398",
"identifier": {
"@type": "PropertyValue",
"propertyID": "DOI",
"value": "10.1590/2317-1782/20232021263pt"
}
},
{
"@type": "ScholarlyArticle",
"name": "Sensitivity and Specificity of Wearables for Atrial Fibrillation in Elderly Populations: A Systematic Review.",
"datePublished": "2023-05-24",
"url": "https://questionsmedicales.fr/article/37222916",
"identifier": {
"@type": "PropertyValue",
"propertyID": "DOI",
"value": "10.1007/s11886-023-01898-3"
}
},
{
"@type": "ScholarlyArticle",
"name": "Sensitivity and specificity of three screening tools for frailty in hospitalized older adults.",
"datePublished": "2023-01-05",
"url": "https://questionsmedicales.fr/article/36640700",
"identifier": {
"@type": "PropertyValue",
"propertyID": "DOI",
"value": "10.1016/j.ijnurstu.2022.104435"
}
},
{
"@type": "ScholarlyArticle",
"name": "Sensitivity and specificity of diagnostic modalities in pouchitis: a systematic review and meta-analysis.",
"datePublished": "2023-09-11",
"url": "https://questionsmedicales.fr/article/37695613",
"identifier": {
"@type": "PropertyValue",
"propertyID": "DOI",
"value": "10.1097/MEG.0000000000002638"
}
},
{
"@type": "ScholarlyArticle",
"name": "Combination of ST2 With Organ-Specific Biomarker is More Sensitive and Specific for the Diagnosis of Acute Graft-vs-Host Disease.",
"datePublished": "2023-06-27",
"url": "https://questionsmedicales.fr/article/37385841",
"identifier": {
"@type": "PropertyValue",
"propertyID": "DOI",
"value": "10.1016/j.transproceed.2023.04.043"
}
}
],
"breadcrumb": {
"@type": "BreadcrumbList",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "questionsmedicales.fr",
"item": "https://questionsmedicales.fr"
},
{
"@type": "ListItem",
"position": 2,
"name": "Phénomènes biologiques",
"item": "https://questionsmedicales.fr/mesh/D001686"
},
{
"@type": "ListItem",
"position": 3,
"name": "Phénomènes écologiques et environnementaux",
"item": "https://questionsmedicales.fr/mesh/D055669"
},
{
"@type": "ListItem",
"position": 4,
"name": "Cycle de l'azote",
"item": "https://questionsmedicales.fr/mesh/D058458"
},
{
"@type": "ListItem",
"position": 5,
"name": "Dénitrification",
"item": "https://questionsmedicales.fr/mesh/D058440"
}
]
}
},
{
"@type": "MedicalWebPage",
"name": "Article complet : Dénitrification - Questions et réponses",
"headline": "Questions et réponses médicales fréquentes sur Dénitrification",
"description": "Une compilation de questions et réponses structurées, validées par des experts médicaux.",
"datePublished": "2025-05-16",
"inLanguage": "fr",
"hasPart": [
{
"@type": "MedicalWebPage",
"name": "Diagnostic",
"headline": "Diagnostic sur Dénitrification",
"description": "Comment diagnostiquer la dénitrification dans un sol ?\nQuels indicateurs montrent une dénitrification active ?\nQuels tests sont utilisés pour évaluer la dénitrification ?\nPeut-on mesurer la dénitrification dans l'eau ?\nQuels outils sont utilisés pour le diagnostic ?",
"url": "https://questionsmedicales.fr/mesh/D058440?mesh_terms=Sensitivity+and+Specificity&page=2#section-diagnostic"
},
{
"@type": "MedicalWebPage",
"name": "Symptômes",
"headline": "Symptômes sur Dénitrification",
"description": "Quels sont les symptômes d'une dénitrification excessive ?\nComment la dénitrification affecte-t-elle la qualité de l'eau ?\nQuels impacts sur la biodiversité ?\nY a-t-il des symptômes visibles dans les cultures ?\nQuels effets sur les écosystèmes aquatiques ?",
"url": "https://questionsmedicales.fr/mesh/D058440?mesh_terms=Sensitivity+and+Specificity&page=2#section-symptômes"
},
{
"@type": "MedicalWebPage",
"name": "Prévention",
"headline": "Prévention sur Dénitrification",
"description": "Comment prévenir la dénitrification excessive ?\nQuelles pratiques agricoles aident à la dénitrification ?\nComment gérer les eaux usées pour éviter la dénitrification ?\nQuels rôles jouent les zones tampons ?\nComment sensibiliser à la dénitrification ?",
"url": "https://questionsmedicales.fr/mesh/D058440?mesh_terms=Sensitivity+and+Specificity&page=2#section-prévention"
},
{
"@type": "MedicalWebPage",
"name": "Traitements",
"headline": "Traitements sur Dénitrification",
"description": "Comment traiter les sols avec une dénitrification faible ?\nQuels traitements pour l'eau contaminée par les nitrates ?\nPeut-on utiliser des bactéries pour améliorer la dénitrification ?\nQuels produits chimiques aident à la dénitrification ?\nComment optimiser la dénitrification en agriculture ?",
"url": "https://questionsmedicales.fr/mesh/D058440?mesh_terms=Sensitivity+and+Specificity&page=2#section-traitements"
},
{
"@type": "MedicalWebPage",
"name": "Complications",
"headline": "Complications sur Dénitrification",
"description": "Quelles complications peuvent résulter d'une dénitrification inappropriée ?\nComment la dénitrification affecte-t-elle la santé humaine ?\nQuels impacts sur les écosystèmes ?\nY a-t-il des risques pour les cultures ?\nQuels effets sur la chaîne alimentaire ?",
"url": "https://questionsmedicales.fr/mesh/D058440?mesh_terms=Sensitivity+and+Specificity&page=2#section-complications"
},
{
"@type": "MedicalWebPage",
"name": "Facteurs de risque",
"headline": "Facteurs de risque sur Dénitrification",
"description": "Quels facteurs augmentent le risque de dénitrification ?\nComment le climat influence-t-il la dénitrification ?\nQuels types de sols sont plus à risque ?\nQuel rôle jouent les pratiques agricoles ?\nComment les zones urbaines influencent-elles la dénitrification ?",
"url": "https://questionsmedicales.fr/mesh/D058440?mesh_terms=Sensitivity+and+Specificity&page=2#section-facteurs de risque"
}
]
},
{
"@type": "FAQPage",
"mainEntity": [
{
"@type": "Question",
"name": "Comment diagnostiquer la dénitrification dans un sol ?",
"position": 1,
"acceptedAnswer": {
"@type": "Answer",
"text": "On utilise des tests de laboratoire pour mesurer les niveaux de nitrates et d'azote gazeux."
}
},
{
"@type": "Question",
"name": "Quels indicateurs montrent une dénitrification active ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "La présence d'azote gazeux et une diminution des nitrates dans le sol sont des indicateurs."
}
},
{
"@type": "Question",
"name": "Quels tests sont utilisés pour évaluer la dénitrification ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des tests de respiration microbienne et des analyses chimiques des sols sont courants."
}
},
{
"@type": "Question",
"name": "Peut-on mesurer la dénitrification dans l'eau ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des échantillons d'eau peuvent être analysés pour détecter les nitrates et l'azote."
}
},
{
"@type": "Question",
"name": "Quels outils sont utilisés pour le diagnostic ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des chromatographes et des spectromètres sont souvent utilisés pour les analyses."
}
},
{
"@type": "Question",
"name": "Quels sont les symptômes d'une dénitrification excessive ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une accumulation d'azote dans l'environnement peut entraîner des problèmes d'eutrophisation."
}
},
{
"@type": "Question",
"name": "Comment la dénitrification affecte-t-elle la qualité de l'eau ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle peut réduire les niveaux de nitrates, améliorant ainsi la qualité de l'eau potable."
}
},
{
"@type": "Question",
"name": "Quels impacts sur la biodiversité ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une dénitrification déséquilibrée peut nuire à certaines espèces aquatiques sensibles."
}
},
{
"@type": "Question",
"name": "Y a-t-il des symptômes visibles dans les cultures ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des signes de stress hydrique ou de carence en nutriments peuvent apparaître."
}
},
{
"@type": "Question",
"name": "Quels effets sur les écosystèmes aquatiques ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une dénitrification excessive peut entraîner des zones mortes dans les écosystèmes aquatiques."
}
},
{
"@type": "Question",
"name": "Comment prévenir la dénitrification excessive ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Limiter l'utilisation d'engrais azotés et adopter des pratiques agricoles durables."
}
},
{
"@type": "Question",
"name": "Quelles pratiques agricoles aident à la dénitrification ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "La rotation des cultures et l'utilisation de cultures de couverture sont bénéfiques."
}
},
{
"@type": "Question",
"name": "Comment gérer les eaux usées pour éviter la dénitrification ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Traiter les eaux usées avant leur rejet pour réduire les nitrates dans l'environnement."
}
},
{
"@type": "Question",
"name": "Quels rôles jouent les zones tampons ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les zones tampons peuvent filtrer les nitrates avant qu'ils n'atteignent les cours d'eau."
}
},
{
"@type": "Question",
"name": "Comment sensibiliser à la dénitrification ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Éduquer les agriculteurs et le public sur les impacts de l'azote et des pratiques durables."
}
},
{
"@type": "Question",
"name": "Comment traiter les sols avec une dénitrification faible ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'ajout de matières organiques peut stimuler l'activité microbienne et la dénitrification."
}
},
{
"@type": "Question",
"name": "Quels traitements pour l'eau contaminée par les nitrates ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des systèmes de filtration et des traitements biologiques peuvent réduire les nitrates."
}
},
{
"@type": "Question",
"name": "Peut-on utiliser des bactéries pour améliorer la dénitrification ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, certaines bactéries peuvent être ajoutées pour augmenter le taux de dénitrification."
}
},
{
"@type": "Question",
"name": "Quels produits chimiques aident à la dénitrification ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des agents réducteurs comme le glucose peuvent être utilisés pour favoriser le processus."
}
},
{
"@type": "Question",
"name": "Comment optimiser la dénitrification en agriculture ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'utilisation de cultures de couverture et de pratiques de conservation peut aider."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent résulter d'une dénitrification inappropriée ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une dénitrification inappropriée peut entraîner une pollution de l'eau et des problèmes de santé."
}
},
{
"@type": "Question",
"name": "Comment la dénitrification affecte-t-elle la santé humaine ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des niveaux élevés de nitrates dans l'eau potable peuvent causer des problèmes de santé."
}
},
{
"@type": "Question",
"name": "Quels impacts sur les écosystèmes ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une dénitrification déséquilibrée peut provoquer des déséquilibres écologiques et des pertes de biodiversité."
}
},
{
"@type": "Question",
"name": "Y a-t-il des risques pour les cultures ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une dénitrification excessive peut entraîner des carences en nutriments pour les plantes."
}
},
{
"@type": "Question",
"name": "Quels effets sur la chaîne alimentaire ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des niveaux élevés de nitrates peuvent affecter la chaîne alimentaire aquatique et terrestre."
}
},
{
"@type": "Question",
"name": "Quels facteurs augmentent le risque de dénitrification ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'utilisation excessive d'engrais azotés et le drainage des sols augmentent le risque."
}
},
{
"@type": "Question",
"name": "Comment le climat influence-t-il la dénitrification ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des conditions humides et chaudes favorisent la dénitrification en augmentant l'activité microbienne."
}
},
{
"@type": "Question",
"name": "Quels types de sols sont plus à risque ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les sols sableux et mal drainés sont plus susceptibles de subir une dénitrification excessive."
}
},
{
"@type": "Question",
"name": "Quel rôle jouent les pratiques agricoles ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des pratiques agricoles non durables augmentent le risque de dénitrification et de pollution."
}
},
{
"@type": "Question",
"name": "Comment les zones urbaines influencent-elles la dénitrification ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les zones urbaines peuvent augmenter les niveaux de nitrates par le ruissellement des eaux usées."
}
}
]
}
]
}
to establish cut-off point for reading speed and accuracy, to obtain minimum values for comprehending texts, and allow classifying students from 2nd to 5th grade of elementary school according to good...
147 assessment protocols for oral reading and text comprehension of students from 3rd to 5th grade of Elementary School with and without reading difficulties were analyzed. The oral text reading rate ...
Sensitivity and specificity for measures of rate and accuracy in text reading were calculated for the 3rd, 4th, and 5th grades. Rate and precision under the ROC curve did not differ statistically. The...
The cutoff values expected for students from 2nd to 3rd grade were identified, with recommendations for using the oral text reading rate for reading comprehension screening procedures....
This study aims to evaluate the sensitivity and specificity of wearable devices for AF detection in older adults, as well as examine the incidence of AF across various studies, contextual factors impa...
A systematic search of three databases identified 30 studies on wearables for AF detection in older adults, encompassing 111,798 participants. Both PPG-based and single-lead electrocardiography-based ...
To determine the test accuracy, including sensitivity, specificity, positive predictive value, negative predictive value and area under curve, of three frailty screening tools in identifying the risk ...
Prospective longitudinal study....
The screening tools [Frail-PPS (Frail-Physical, Psychological and Social), Frailty Assessment Measure (FAM), and Identification of seniors at-risk hospitalized patients (ISAR-HP)] were administered by...
Of 366 patients enrolled in the study, 78 (21.3%) experienced one or more frail outcomes, with 65 (17.76%) experiencing functional decline, 61 (16.67%) requiring a full-time caregiver upon discharge a...
With high specificity and negative predictive values, as well as low sensitivity, FAM and Frail-PPS may be beneficial in identifying older individuals who are not frail, minimizing unnecessary further...
Restorative proctocolectomy (RPC) is the most common surgical procedure to restore gastrointestinal continuity after surgical resection of the colon and rectum. Pouchitis is a common complication with...
Diagnosis of acute graft-vs-host disease (aGVHD) based on clinical symptoms and biopsy of involved organ was not satisfactory; reliable plasma biomarkers or their panels would be of great value to inc...
One hundred two patients who received allogeneic hematopoietic stem cell transplantation in our center were included in this study. Systemic biomarkers of ST2, IP10, IL-2Rα, TNFR1, and organ-specific ...
The level of each systemic biomarker in aGVHD patients was significantly higher than that in patients without aGVHD. Organ-specific biomarker of Elafin, REG-3α, and KRT-18F also had predictive value f...
All the biomarkers tested in our study correlated with the severity and clinical course of aGVHD. Combination of each systemic biomarker with organ-specific biomarker could increase the sensitivity an...
The CRISPR/Cas system, commonly known as the "gene scissors", demonstrates remarkable specificity and efficient signal amplification capabilities. Enzymatic recombinase amplification (ERA) was utilize...
The sensitivity of the ERA-CRISPR/Cas12a fluorescence and lateral flow systems was 9 copies/μL and 90 copies/μL, respectively. Simultaneously, the detection system exhibited no cross-reactivity with v...
The ERA-CRISPR/Cas12a system offers a rapid, sensitive, and specific method that presents a novel approach to laboratory diagnosis of...
Secondary dose calculation (SDC) with an independent algorithm is one option to perform plan-specific quality assurance (QA). While measurement-based QA can potentially detect errors in plan delivery,...
Thirty head and neck VMAT plans and 30 modifications of those plans, including errors related to density and beam modelling, were recalculated using RadCalc with a Monte Carlo algorithm. Decision thre...
Despite optimized decision thresholds, none of the systems was able to reliably detect all errors. ArcCHECK analysis using a 2%/2 mm criterion with a threshold of 91.1% had an area under the curve (AU...
Secondary dose calculation with RadCalc is an alternative to established measurement-based phantom QA. Different tools catch different errors; therefore, a combination of approaches should be preferre...
The most widely used gradient-echo (GE) blood oxygenation level-dependent (BOLD) contrast has high sensitivity, but low specificity due to draining vein contributions, while spin-echo (SE) BOLD approa...
Escherichia coli O157 can cause foodborne outbreaks, with infection leading to severe disease such as hemolytic-uremic syndrome. Although phage-based detection methods for E. coli O157 are being explo...
Detection of Burkholderia pseudomallei, a causative bacterium for melioidosis, remains a challenging undertaking due to long assay time, laboratory requirements, and the lack of specificity and sensit...