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Background and aim: Immediate implant therapy has become a widespread technique that immediately restoration of esthetic and function. Its dimensions should be determined after the exploration of the bone around the natural tooth. This study aimed to explore alveolar bone in the maxillary anterior region using cone-beam computed tomography, including CS 3D Imaging Software.Materials and methods: It is a retrospective study conducted in the Dental Faculty of Medicine Monastir Tunisia. It included 400 CBCT Scans checked from the radiological center. On selected CBCT, fulfilling inclusion criteria, facial alveolar bone thicknesses in the coronal (point A), middle (point B), and apical third (point C) were calculated. Alveolar height, crest height, and tooth angulations were also determined. Using SPSS 21software, descriptive statistics including the mean and standard deviation (SD) were calculated. AS well T-test, Pearson correlation, and Friedman test were used to analyze the data. The significance level was set at 95%.Results: Mean alveolar height of maxillary central incisor, lateral incisor, and canine was respectively 20.5±3.62, 20.73±2.53, and 20.36± 2.81 mm. The difference between sites was statistically significant. Males had longer alveolar height than females. The mean facial plate thicknesses of the alveolar bone across point measurements A, B, and C were 0.86, 0.90, and 0.99mm for maxillary central incisors, 1.4, 0.80, and 0.84 mm maxillary lateral incisors and 1.08, 0.67, and 0.66mm for maxillary canines. Mean alveolar crest height (D) of the anterior maxillary teeth were 2.32 ± 1.04, 2.20 ± 0.1 and 2, 41 ±1.7 respectively at the level of maxillary central incisors, lateral incisors, and canines.Conclusion: Facial bone is thin: lateral incisors have the most significant bone thickness, followed by central incisors, then canines with the most negligible bone thickness among the anterior maxillary teeth. Males exhibited greater facial bone heights. Facial bone thickness depends on teeth' angulations. Immediate implant placement in this area requires careful radiological exploration, taking into consideration its features.

Étroitement liés quant à leurs héritages mais se distinguant sur les questions épistémologiques et ontologiques, les champs de l’écologie industrielle, de l’écologie industrielle et territoriale et de l’écologie territoriale font face à un double enjeu : amorcer des réflexions sur l’interdisciplinarité qui les relie et structurer une communauté de chercheurs francophones. Cet article est une synthèse des interventions et débats qui ont animé les premières rencontres des jeunes chercheurs en écologie industrielle, écologie territoriale et écologie industrielle et territoriale, qui se sont tenues à l’Université de technologie de Troyes, les 13 et 14 avril 2017. Cet évènement a permis de questionner les fondements épistémologiques de ces champs ainsi que l’interdisciplinarité qui en découle, dans la perspective de fédérer un réseau de jeunes chercheurs.

Electrocardiograms (ECGs) can be affected by various factors and technical problems. It is rare for an artefact to be the cause of ST-segment elevation, especially in asymptomatic patients. An important distinction between true ST segment elevation caused by myocardial infarction and an artefact is that the baseline elevation in an artefact may begin before or after the appearance of the QRS complex. When confronted with an abnormal ECG with suspicious waveform contours and possibly only one completely normal limb leads, the diagnosis of arterial pulse artefact should be considered. It is important to exclude subjective assessments unless they are clearly labelled as such.

Electrocardiograms (ECGs) can be affected by various factors and technical problems. It is rare for an artefact to be the cause of ST-segment elevation, especially in asymptomatic patients. An important distinction between true ST segment elevation caused by myocardial infarction and an artefact is that the baseline elevation in an artefact may begin before or after the appearance of the QRS complex. When confronted with an abnormal ECG with suspicious waveform contours and possibly only one completely normal limb lead, the diagnosis of arterial pulse artefact should be considered. It is important to exclude subjective assessments unless they are clearly labelled as such. When encountering an abnormal ECG with suspicious waveform contours and possibly only one completely normal limb lead, the diagnosis of arterial pulse artefact should be considered.

Flow of non-Newtonian fluids between parallel plates has many uses including heat transfer applications. Many non-Newtonian fluids can be categorized as pseudoplastic fluids. A broader category, power-law fluids, covers in addition dilatant and Newtonian fluids. Models for developing power-law fluid flow between parallel plates include computational and integral boundary layer methods. Most published studies include partial results and apply to one of the three categories. The present work addresses the three cases and exclusively shows the transition from developing to fully developed flow. In the inlet region, viscous effects are restricted to the boundary layer. The present approach is based on the inlet-filled region concept, and includes an additional zone, called filled region in which viscous effects are present in the whole region, with the flow asymptotically reaching the fully developed solution. The integral boundary layer method is used in both regions to solve for the flow. The results are found to be in good agreement with published Newtonian, pseudoplastic and dilatant fluid results for boundary layer thickness, centerline velocity, local friction factor, pressure drop profiles, and entrance region size. The present model is fundamentally analytical with minor computational work required.

Electrocardiograms (ECGs) can be affected by various factors and technical problems. It is rare for an artefact to be the cause of ST-segment elevation, especially in asymptomatic patients. An important distinction between true ST segment elevation caused by myocardial infarction and an artefact is that the baseline elevation in an artefact may begin before or after the appearance of the QRS complex. When confronted with an abnormal ECG with suspicious waveform contours and possibly only one completely normal limb leads, the diagnosis of arterial pulse artefact should be considered. It is important to exclude subjective assessments unless they are clearly labelled as such.

Background Current injury prevention programmes in football are limited by a one-size-fits-all approach, which predominantly focuses on preventive exercise programmes while ignoring differences in risk profiles between individuals and teams.Objective To address this gap, we developed a new data-driven, customisable approach based on the principles of risk management. We collaborated with key stakeholders to identify focus areas for injury and illness prevention and determine their priorities.Setting The team medical and coaching staff included members from 17 professional football clubs, the national team and a youth football academy in Qatar.Methods In 2015, we launched a series of annual workshops under the Aspetar Sports Injury and Illness Prevention Programme. The workshops included club medical personnel and fitness coaches in a process to develop team-specific programmes for injury and illness prevention based on the principle of risk management. Over 2 years, workshops refined focus areas through discussions, surveys and small-group presentations, culminating in the creation a novel programme for football injury prevention.Results Out of 44 focus areas first identified, 23 were selected as priorities for inclusion in multimodal injury and illness prevention programmes. The identified focus areas represent a variety of aspects, including social/behavioural/lifestyle, exercise programmes/training, load management, recovery and equipment. The top priorities included communication, the Nordic hamstring exercise, training load, recovery strategies, nutrition, sleep, warm-up, the Copenhagen adduction exercise and core and dynamic stability.Conclusion We have developed a comprehensive framework for preventing injuries and illnesses in football grounded in the general principles of risk management. This framework has proven feasible and led to the creation of a new multicomponent programme, The Aspetar IP2 (Injury and Illness Prevention for Performance) NetWork, focusing on a range of areas beyond preventive exercise programmes only.

Land use and water resources are closely linked. Every single type of land use has a different influence on the hydrologic cycle, consequently impacting the people and the natural resources. The use of advanced technologies, for example monitoring the agricultural resources with remote sensing, offers the possibility to assess the water demand, to know the total cultivated area with the precise distribution of crops and enables the regularly acquisition of data distributed in space and time. The citrus sub-sector is of paramount importance in the Tunisian agricultural sector. The Cap Bon region has the main production area with 75 % of the total citrus area. The possibility of classifying citrus crops is important for water resource management at regional scale and for economic stability. Given the socio-economic importance of the citrus sector in the Cap Bon region, it is very important to have accurate estimation of the total area of citrus plots in this region. Therefore, the main objectives of this current work are: To integrate multitemporal synthetic aperture radar SAR data, Sentinel-1, and optical data Sentinel-2, together to determine the best machine learning algorithm that allowed obtaining the most accurate citrus crop classification in the region. To study and analyze the temporal signatures of the Normalized Difference Vegetation Index (NDVI) of the classified crops, mainly the citrus, with the purpose to provide the maximum amount of information that allow the differentiation between the crops. To study the potential relation between NDVI and Actual Evapotranspiration (ETa) fluxes measured with the eddy covariance method for a citrus orchard to extrapolate the eddy tower measurements to greater scales. To achieve these objectives, we evaluated the performance of 22 nonparametric classifiers during the period September 2020–June 2021. Additionally, ET measured by the eddy covariance method was available for the same period, so we tried to find the potential relation between NDVI and Actual Evapotranspiration (ETa). The results revealed that the best performing classifier is the Support Vector Machine SVM with an accuracy around 91 %. Consequently, our results provided a significant contribution to the citrus classification in the Cap Bon region but can be further improved. Also, the obtained results highlighted the potential to extrapolate accurate ET estimation to larger scales using the vegetation index obtained from Sentinel-2 data.

Under climate change conditions, optimizing water resources management in rainfed agricultural production systems requires the reasonable choice of crops. In this context, the adoption of crops diversification is promoted to increase the agricultural production and the added value per cubic meter of rain water (green water) used by crops. Contributing, therefore, to increase agricultural production and to preserve soil and water resources. The objective of this study is: (i) to identify mixed crops within agricultural fields and, (ii) to evaluate the biomass production and the water productivity in the Lebna watershed (Cap-Bon, Tunisia) using remote sensing and field measurements. The study area, covering 210 km2, is characterized by the predominant of cereals, legumes and fodder cropping systems. The experiments allowed the quantification of crop evapotranspiration and the observed biomass production at the agricultural field plots. The use of the sentinel images and the observations at different agricultural fields allowed to produce NDVI maps. The results first confirmed a good correlation between biomass production and NDVI values. The exponential relationships showed a values of R2 greater than 0.7. The use of sentinel images and GIS allowed to compute water productivity from field to watershed scale. The results revealed a considerable spatial variation in water productivity values for different crops. Compared to a single crop, the cereal-legume mixture cropping improved the water productivity. The maximum value with 9.07 kg m−3 is observed for the mixture crops. The lowest value (0.12 to 2.40 kg m−3) was obtained for the cereal crop. These results help to recommend adaptation measures in agricultural production systems to climate change.

Introduction and importance The cholecystoenteric fistula, a rare complication of cholelithiasis, usually occurs as an internal biliary fistula. Our case features a cholecystoduodenal fistula presenting with severe upper gastrointestinal bleeding originating from the cystic artery. Symptoms vary, and preoperative diagnosis is uncommon. Case presentation A 63-year-old diabetic patient, who had undergone surgical treatment for a left forearm fracture, presented with persistent bleeding, hematemesis, and melena. Diagnostic esophagogastroduodenoscopy revealed an actively bleeding ulcer on the duodenal bulb, with an attempted hemostasis. Initial stabilization was achieved, but a recurrence occurred after 17 hours with hemodynamic instability. Emergency laparotomy revealed cholecystitis with a cholecystoduodenal fistula, necessitating cholecystectomy and ulcer resection. The source of bleeding was the cystic artery. The patient had a positive postoperative outcome with no recurrence of hemorrhage. Clinical discussion Cholecystoenteric fistulas, forming from obstructed cystic duct inflammation, are rare complications of biliary lithiasis. Most cases are spontaneous, linked to gallstones. Severe upper gastrointestinal bleeding from cholecystoduodenal fistulas is uncommon, often requiring surgical intervention due to cystic artery erosion. Despite advancements in laparoscopic methods, open operations are preferred for anatomical distortion and inflammation. A clear diagnosis involves hepatic angiography and may necessitate embolization. The rarity of this condition emphasizes the need for vigilant diagnosis, especially in patients with gallstone history. Conclusion Massive bleeding from cystic artery erosion by duodenal ulcer through cholecystoduodenal fistula underscores the need for clinicians’ vigilance. Recognition of gallstone disease history is crucial for timely diagnosis in this rare cause of gastrointestinal bleeding.

Primary urethral melanoma is an exceptionally rare malignancy, comprising a small fraction of melanomas and malignant tumors affecting the female urethra. We report the case of a 74-year-old woman presenting with symptoms initially suggestive of a benign urethral caruncle, which was later diagnosed as nodular melanoma upon histopathological examination. Despite complete surgical excision, subsequent imaging revealed widespread metastases to lymph nodes, liver, lungs, and brain. The patient was promptly referred for systemic therapy. This case highlights the diagnostic challenges and emphasizes the importance of thorough staging and emerging treatment modalities, such as immunotherapy, in managing this aggressive malignancy.

Abstract This paper specifically investigates the effects of US government emergency actions on the investor sentiment–financial institution stock returns relationship. Despite attempts by many studies, the literature still provides no answers concerning this nexus. Using a new firm-specific Twitter investor sentiment (TS) metric and performing a panel smooth transition regression for daily data on 66 S&P 500 financial institutions from January 1 to December 31, 2020, we find that TS acts asymmetrically, nonlinearly, and time varyingly according to the pandemic situation and US states’ responses to COVID-19. In other words, we uncover the nexus between TS and financial institution stock returns and determine that it changes with US states’ reactions to COVID-19. With a permissive government response (the first regime), TS does not impact financial institution stock returns; however, when moving to a strict government response (the overall government response index exceeds the 63.59 threshold), this positive effect becomes significant in the second regime. Moreover, the results show that the slope of the transition function is high, indicating an abrupt rather than a smooth transition between the first and second regimes. The results are robust and have important policy implications for policymakers, investment analysts, and portfolio managers.

Abstract We report the successful fabrication of a pharmaceutical cellular bank (PCB) containing magnetotactic bacteria (MTB), which belong to the Magnetospirillum gryphiswaldense MSR1 species. To produce such PCB, we amplified MTB in a minimal growth medium essentially devoid of other heavy metals than iron and of CMR (Carcinogenic, mutagenic and reprotoxic) products. The PCB enabled to acclimate MTB to such minimal growth conditions and then to produce highly pure magnetosomes composed of more than 99.9% of iron. The qualification of the bank as a PCB relies first on a preserved identity of the MTB compared with the original strain, second on genetic bacterial stability observed over 100 generations or under cryo-preservation for 16 months, third on a high level of purity highlighted by an absence of contaminating microorganisms in the PCB. Furthermore, the PCB was prepared under high-cell load conditions (9.108 cells/mL), allowing large-scale bacterial amplification and magnetosome production. In the future, the PCB could therefore be considered for commercial as well as research orientated applications in nanomedicine. We describe for the first-time conditions for setting-up an effective pharmaceutical cellular bank preserving over time the ability of certain specific cells, i.e. Magnetospirillum gryphiswaldense MSR1 MTB, to produce nano-minerals, i.e. magnetosomes, within a pharmaceutical setting.

Introduction Pancreatic trauma is notably less frequent than injuries affecting other solid organs, such as the liver or spleen. Despite their infrequency, pancreatic injuries can pose significant risks, with mortality rates ranging from 5 to 30% and morbidity rates reaching 50%. Managing such injuries remains contentious because of the anatomical complexity, lesion extent, and close proximity to neighboring organs. Methods Our study aimed to delineate the clinical and biological characteristics of pancreatic trauma and specify diagnostic and therapeutic modalities. This study was conducted retrospectively from 2010 to 2021 at Mahmoud El Matri Hospital’s General Surgery Department in Ariana, TUNISIA, and included five cases of blunt and open pancreatic trauma. Results Although rare, pancreatic injuries can lead to serious consequences, prompting the development of a diverse array of therapeutic options. Pancreatic trauma presents a complex clinical challenge, necessitating a comprehensive approach that considers various factors, such as injury severity, anatomical location, and patient condition. Advanced imaging techniques, including computed tomography (CT) scanning, Wirsung-MRI, and ERCP, aid in the accurate diagnosis and assessment of canal involvement. Conservative management was considered for cases with limited canal rupture, whereas endoscopic treatments showed promise for hemodynamically stable cases. Surgical interventions, such as duodenopancreatectomy, are reserved for exceptional cases with severe injuries. Conclusion Pancreatic trauma requires a comprehensive approach that considers factors such as injury severity, anatomical location, and patient condition. Ongoing research and collaboration are vital for refining pancreatic trauma management and proposing guidelines for facilitating decision-making.