223 results on '"Gevenois, P.A."'
Search Results
2. Imagerie des pathologies bénignes de l’amiante
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Gevenois, P.A.
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- 2006
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3. Computed tomography assessment of lung structure and function in pulmonary emphysema
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Madani, A., primary, Keyzer, C., additional, and Gevenois, P.A., additional
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- 2004
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4. Glossary of terms for thoracic radiology
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Bankier, A., primary and Gevenois, P.A., additional
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- 2004
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5. INTRODUCTION
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Bankier, A., primary and Gevenois, P.A., additional
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- 2004
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6. Radiation dose in computed tomography of the chest
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Tack, D., primary and Gevenois, P.A., additional
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- 2004
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7. Computed tomography assessment of lung structure and function in pulmonary oedema
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Scillia, P., primary, Bankier, A., additional, and Gevenois, P.A., additional
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- 2004
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8. Differentiating between Subsolid and Solid Pulmonary Nodules at CT: Inter- and Intraobserver Agreement between Experienced Thoracic Radiologists
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Ridge, C.A., Yildirim, A., Boiselle, P.M., Franquet, T., Schaefer-Prokop, C.M., Tack, D., Gevenois, P.A., Bankier, A.A., Ridge, C.A., Yildirim, A., Boiselle, P.M., Franquet, T., Schaefer-Prokop, C.M., Tack, D., Gevenois, P.A., and Bankier, A.A.
- Abstract
Item does not contain fulltext, Purpose To quantify the reproducibility and accuracy of experienced thoracic radiologists in differentiating between subsolid and solid pulmonary nodules at CT. Materials and Methods The institutional review board of Beth Israel Deaconess Medical Center approved this multicenter study. Six thoracic radiologists, with a mean of 21 years of experience in thoracic radiology (range, 17-22 years), selected images of 10 solid and 10 subsolid nodules to create a database of 120 nodules; this selection served as the reference standard. Each radiologist then interpreted 120 randomly ordered nodules in two different sessions that were separated by a minimum of 3 weeks. The radiologists classified whether or not each nodule was subsolid. Inter- and intraobserver agreement was assessed with a κ statistic. The number of correct classifications was calculated and correlated with nodule size by using Bland-Altman plots. The relationship between disagreement and nodule morphologic characteristics was analyzed by calculating the intraclass correlation coefficient. Results Interobserver agreement (κ) was 0.619 (range, 0.469-0.745; 95\% confidence interval (CI): 0.576, 0.663) and 0.670 (range, 0.440-0.839; 95\% CI: 0.608, 0.733) for interpretation sessions 1 and 2, respectively. Intraobserver agreement (κ) was 0.792 (95\% CI: 0.750, 0.833). Averaged for interpretation sessions, correct classification was achieved by all radiologists for 58\% (70 of 120) of nodules. Radiologists agreed with their initial determination (the reference standard) in 77\% of cases (range, 45\%-100\%). Nodule size weakly correlated with correct classification (long axis: Spearman rank correlation coefficient, rs = 0.161 and P = .049; short axis: rs = 0.128 and P = .163). Conclusion The reproducibility and accuracy of thoracic radiologists in classifying whether or not a nodule is subsolid varied in the retrospective study. This inconsistency may affect surveillance recommendations and prognostic determina
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- 2016
9. Particularités de la sarcoïdose médiastino-pulmonaire selon l’ethnie : à propos de 102 cas colligés dans le service de pneumologie de l’hôpital Erasme entre le 01/01/1998 et le 31/12/2013
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De Vuyst, P., primary, Gevenois, P.A., additional, Remmelink, M., additional, Adjoh, K.S., additional, Somassè, Y.E., additional, Van Muylem, A., additional, Tidjani, O., additional, and Wachinou, A.P., additional
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- 2015
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10. Bronchopneumopathie chronique obstructive : apports respectifs de la radiographie conventionnelle et de la tomodensitométrie hélicoïdale
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Hackx, M., primary, Litmanovich, D., additional, Bankier, A.A., additional, and Gevenois, P.A., additional
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- 2010
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11. Diagnostic des hyperclartés et des images kystiques pulmonaires de l'adulte
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Grosse, C., primary, Bankier, A.A., additional, Remmelink, M., additional, and Gevenois, P.A., additional
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- 2007
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12. Calcul de la dose efficace pour des acquisitions TDM : comparaison de logiciels dedies disponibles sur le marche
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Tack, D., primary and Gevenois, P.A., additional
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- 2006
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13. THO2 Reduction de la dose d’irradiation et reproductibilite de la volumetrie de nodules pulmonaires
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Gosset, N., primary, de Maertelaer, V., additional, Tack, D., additional, and Gevenois, P.A., additional
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- 2006
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14. Reduction de la dose d’irradiation et reproductibilite de la volumetrie de nodules pulmonaires
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Gosset, N., primary, de Maertelaer, V., additional, Tack, D., additional, and Gevenois, P.A., additional
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- 2006
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15. L’imagerie de la plèvre
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Gevenois, P.A., primary
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- 2006
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16. Les moyens de limitation de l’irradiation
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Tack, D., primary, Keyzer, C., additional, and Gevenois, P.A., additional
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- 2004
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17. Quantitative computed tomography assessment of lung structure and function in pulmonary emphysema
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Madani, A., primary, Keyzer, C., additional, and Gevenois, P.A., additional
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- 2001
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18. Observer variation in computed tomography of pleural lesions in subjects exposed to indoor asbestos
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De Raeve, H., primary, Verschakelen, J.A., additional, Gevenois, P.A., additional, Mahieu, P., additional, Moens, G., additional, and Nemery, B., additional
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- 2001
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19. Why a series on imaging in the ERJ?
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Bankier, A.A., primary, Gevenois, P.A., additional, and Sibille, Y., additional
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- 2001
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20. Radiological findings in nine AIDS patients with Rhodococcus equi pneumonia
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Wicky, S., primary, Cartei, F., additional, Mayor, B., additional, Frija, J., additional, Gevenois, P.A., additional, Giron, J., additional, Laurent, F., additional, Perri, G., additional, and Schnyder, P., additional
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- 1996
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21. MRI in the evaluation of neoplastic invasion of the pulmonary arteries. (In German)
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Tack, D., primary, Gevenois, P.A., additional, and Van Sinoy, M.Z., additional
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- 1990
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22. Computed Tomography Assessment of Lung Structure and Function in Pulmonary Edema.
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Scillia, P., Bankier, A.A., and Gevenois, P.A.
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TOMOGRAPHY ,PULMONARY edema ,MEDICAL radiology ,DIAGNOSTIC imaging ,LUNG diseases ,EDEMA - Abstract
By definition pulmonary edema is an abnormal accumulation of water in the lung. Consequently, the computed tomography (CT) appearance of pulmonary edema reflects the sequence of this accumulation. In early hydrostatic pulmonary edema, CT shows vascular engorgement and peribronchovascular cuffing that increases with the severity of edema and that is associate in late stage, with consolidations. In acute respiratory distress syndrome (ARDS), CT shows the proportion of injured parenchyma and depicts associated alterations as parenchymal infiltrate and consolidation, pleural effusion, pneumothorax. These merely morphological findings can be complemented with data from objective CT analysis of the lung parenchyma. Indeed CT can assess lung water noninvasively. Correlated with hydrodynamic parameter, these objective measurements show that the increase of lung density parallels parenchymal fluid overload. these data also show that the occurrence of ground glass opacities can precede the hemodynamic evidence of edema. [ABSTRACT FROM AUTHOR]
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- 2004
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23. MUC5B rs35705950 Promoter Variant Is Associated with Usual Interstitial Pneumonia in Patients with Antisynthetase Syndrome.
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Rivero-Gallegos, Daphne, Mejía, Mayra, Nava-Quiroz, Karol J., Ramos-Martínez, Espiridión, Mateos-Toledo, Heidegger N., Rocha-González, Héctor Isaac, Huerta-Cruz, Juan Carlos, Pérez-Rubio, Gloria, Fricke-Galindo, Ingrid, Rojas-Serrano, Jorge, and Falfán-Valencia, Ramcés
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IDIOPATHIC pulmonary fibrosis ,INTERSTITIAL lung diseases ,CONFOUNDING variables ,ODDS ratio ,LOGISTIC regression analysis - Abstract
Background: The presence of the rs35705950 variant in the MUC5B gene promoter is a critical genetic risk factor in idiopathic pulmonary fibrosis (IPF). It has been associated with usual interstitial pneumonia (UIP) in several interstitial lung diseases (ILDs). In antisynthetase syndrome (ASSD), most high-resolution computed tomography (HRCT) patterns are inflammatory, but up to 13% have UIP, leading to a worse prognosis. Methods: This single-center study included 60 patients with ASSD-ILD. We investigated whether carrying the MUC5B rs35705950 promoter variant was associated with UIP. To estimate the strength of the association between the genotype of the MUC5B rs35705950 promoter variant and the fibrotic pattern we used the odds ratio (cOR), and to assess the effect of confounding variables (age, evolution time, and sex), we performed a logistic regression to obtained the adjusted odds ratio (aOR). Results: The GT genotype of the MUC5B rs35705950 promoter variant is associated with up to a 4-fold increased risk of UIP (cOR 5.0, 95% CI 1.13–22.10), and the effect was even maintained after adjusting for potentially confounding variables such as sex, age, and time to progression (aOR 5.2, 95% CI 1.04–25.89). Conclusions: our study supports the role of MUC5B rs35705950 in ASSD-ILD with UIP. It reinforces that this polymorphism in our population could have a similar genetic basis to that already described in other ILDs that present predominantly fibrotic patterns. [ABSTRACT FROM AUTHOR]
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- 2024
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24. Occupational Exposures, Chronic Obstructive Pulmonary Disease and Tomographic Findings in the Spanish Population.
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Loeb, Eduardo, Zock, Jan-Paul, Miravitlles, Marc, Rodríguez, Esther, Kromhout, Hans, Vermeulen, Roel, Soler-Cataluña, Juan José, Soriano, Joan B., García-Río, Francisco, de Lucas, Pilar, Alfageme, Inmaculada, Casanova, Ciro, González-Moro, José Rodríguez, Ancochea, Julio, Cosío, Borja G., and Ferrer Sancho, Jaume
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CHRONIC obstructive pulmonary disease ,OCCUPATIONAL exposure ,LUNGS ,POISONOUS gases ,SPIROMETRY - Abstract
Self-reported occupational exposure was previously associated with COPD in the Spanish population. This study aimed to analyse the relationship between occupational exposure to various chemical and biological agents, COPD, emphysema, and the bronchial wall area, which was determined by lung computed tomography (CT) in 226 individuals with COPD and 300 individuals without COPD. Lifetime occupational exposures were assessed using the ALOHA(+) job exposure matrix, and CT and spirometry were also performed. COPD was associated with high exposure to vapours, gases, dust and fumes (VGDF) (OR 2.25 95% CI 1.19–4.22), biological dust (OR 3.01 95% CI 1.22–7.45), gases/fumes (OR 2.49 95% CI 1.20–5.17) and with exposure to various types of solvents. High exposure to gases/fumes, chlorinated solvents and metals (coefficient 8.65 95% CI 1.21–16.09, 11.91 95%CI 0.46- 23.36, 14.45 95% CI 4.42–24.49, respectively) and low exposure to aromatic solvents (coefficient 8.43 95% CI 1.16–15.70) were associated with a low 15th percentile of lung density indicating emphysema. We conclude that occupational exposure to several specific agents is associated with COPD and emphysema in the Spanish population. [ABSTRACT FROM AUTHOR]
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- 2024
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25. Current Status and Future Perspectives of Preoperative and Intraoperative Marking in Thoracic Surgery.
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Chen-Yoshikawa, Toyofumi Fengshi, Nakamura, Shota, Ueno, Harushi, Kadomatsu, Yuka, Kato, Taketo, and Mizuno, Tetsuya
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VIDEO-assisted thoracic surgery ,DIAGNOSTIC imaging ,THREE-dimensional imaging ,EARLY detection of cancer ,COMPUTED tomography ,THORACIC surgery ,PREOPERATIVE care ,SURGICAL therapeutics ,INTRAOPERATIVE monitoring ,SIMULATION methods in education ,SOLITARY pulmonary nodule ,GAS embolism ,MOLECULAR diagnosis - Abstract
Simple Summary: With advances in radiological imaging and its increased use, small nodules are being detected more frequently. Surgical resection is often the final option for diagnosis and treatment; however, small nodules may be too small to be detected during surgery. The lungs are soft, deformable organs that can change shape during respiratory phases and surgical procedures. Thus, surgeons rely on preoperative or intraoperative markings for nodule identification and precise resection. Furthermore, two randomized clinical trials found that sublobar resection could be an alternative treatment for early-stage non-small-cell lung cancer. Therefore, the demand for preoperative or intraoperative marking techniques is increasing, particularly for wedge resection or segmentectomy. In this study, we provide a narrative review of the current status and future perspectives of preoperative and intraoperative markings in thoracic surgery. The widespread implementation of lung cancer screening and thin-slice computed tomography (CT) has led to the more frequent detection of small nodules, which are commonly referred to thoracic surgeons. Surgical resection is the final diagnostic and treatment option for such nodules; however, surgeons must perform preoperative or intraoperative markings for the identification of such nodules and their precise resection. Historically, hook-wire marking has been performed more frequently worldwide; however, lethal complications, such as air embolism, have been reported. Therefore, several surgeons have recently attempted to develop novel preoperative and intraoperative markers. For example, transbronchial markings, such as virtual-assisted lung mapping and intraoperative markings using cone-beam computed tomography, have been developed. This review explores various marking methods that have been practically applied for a better understanding of preoperative and intraoperative markings in thoracic surgery. Recently, several attempts have been made to perform intraoperative molecular imaging and dynamic virtual three-dimensional computed tomography for the localization, diagnosis, and margin assessment of small nodules. In this narrative review, the current status and future perspectives of preoperative and intraoperative markings in thoracic surgery are examined for a better understanding of these techniques. [ABSTRACT FROM AUTHOR]
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- 2024
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26. Towards Renewable Energy Transition: Insights from Bibliometric Analysis on Scholar Discourse to Policy Actions.
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Diaconescu, Mirela, Marinas, Laura Elena, Marinoiu, Ana Maria, Popescu, Maria-Floriana, and Diaconescu, Mihai
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RENEWABLE energy transition (Government policy) ,ENERGY policy ,BIBLIOMETRICS ,SUSTAINABLE development ,POWER resources - Abstract
Mounting climate concerns are making energy transition inevitable. Providing a reliable, cost-effective energy supply that meets the needs of all, as set up by Sustainable Development Goal 7, and promotes climate neutrality, as set up by the European Green Deal, is a complex task that requires complex and combined interventions in various sectors and policy areas. This paper aims to conduct a systematic analysis of the scholarly work focusing on energy transition towards renewables and to contribute to the existing knowledge by offering a holistic perspective on the dynamic landscape of energy transformation and the transition to renewables. To this end, advanced bibliometric techniques, combined with a systematic in-depth review of the existing literature and desk research, are used to uncover the intellectual landscape and identify influential works and emerging themes within this critical intersection of the economic, governance, political, social, and climate dimensions of energy transition. This analysis not only highlights prevailing trends and influential works but also sets the stage for future research and discussions critical to shaping the transition to renewable energy and policy actions in a rapidly evolving world. The results are useful guidance in the formulation of policy actions. [ABSTRACT FROM AUTHOR]
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- 2024
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27. Research Interest in Copper Materials for Caries Management: A Bibliometric Analysis.
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Xu, Veena Wenqing, Nizami, Mohammed Zahedul Islam, Yin, Iris Xiaoxue, Niu, John Yun, Yu, Ollie Yiru, and Chu, Chun-Hung
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COPPER ,MATERIALS management ,ORTHODONTIC appliances ,BIBLIOMETRICS ,COPPER oxide - Abstract
This study examined research interest in copper materials for caries management. We conducted an exhaustive literature search of English publications on copper materials for caries management. We removed duplicate publications and screened the titles and abstracts to identify relevant publications. Then, we analyzed the bibliometric data of the publications using the Bibliometrix and VOSviewer programs. This study included 75 laboratory studies, six clinical trials, and 17 reviews. Most of the original research studied copper or copper oxide nanoparticles (45/81, 56%). The materials could be doped into topical agents, restorative fillers, dental adhesives, dental implants, and orthodontic appliances. Since the first paper was published in 1980, publication counts gradually increased and surged in 2019. Among publications on copper materials for caries management, the publication counts and citations from 2019 to 2024 accounted for 65% (64/98) and 74% (1677/2255) over the last 45 years. Cocitation analysis revealed that the two main keywords were nanoparticles and antibacterial activity, and their burst strengths (period) were 3.84 (2021–2024) and 2.21 (2020–2021). The topics of the top two publications with the highest citation burst strength (period) are the antimicrobial effect of copper oxide nanoparticles (3.14, 2021–2022) and the dental application of copper nanoparticles (2.84, 2022–2024). In conclusion, this study revealed a growing interest in copper materials for caries management. [ABSTRACT FROM AUTHOR]
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- 2024
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28. From Whence Commeth Data Misreporting? A Survey of Benford's Law and Digit Analysis in the Time of the COVID-19 Pandemic.
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Vâlsan, Călin, Puiu, Andreea-Ionela, and Druică, Elena
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BENFORD'S law (Statistics) ,BIBLIOMETRICS ,COVID-19 pandemic ,RESEARCH personnel ,RESEARCH methodology - Abstract
We survey the literature on the use of Benford's distribution digit analysis applied to COVID-19 case data reporting. We combine a bibliometric analysis of 32 articles with a survey of their content and findings. In spite of combined efforts from teams of researchers across multiple countries and universities, using large data samples from a multitude of sources, there is no emerging consensus on data misreporting. We believe we are nevertheless able to discern a faint pattern in the segregation of findings. The evidence suggests that studies using very large, aggregate samples and a methodology based on hypothesis testing are marginally more likely to identify significant deviations from Benford's distribution and to attribute this deviation to data tampering. Our results are far from conclusive and should be taken with a very healthy dose of skepticism. Academics and policymakers alike should remain mindful that the misreporting controversy is still far from being settled. [ABSTRACT FROM AUTHOR]
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- 2024
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29. A Proposal for a Process from as Low as Reasonably Achievable to an Ultra-Low-Level Goal in Chest Computed Tomography.
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Fitton, Isabelle, Charpentier, Etienne, Arsovic, Emina, Isaia, Jennifer, Guillou, Manon, Saltel-Fulero, Aurélien, Fournier, Laure, and Van Ngoc Ty, Claire
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COMPUTED tomography ,CONE beam computed tomography ,LIKERT scale ,RADIATION doses ,GROUP process - Abstract
Background/Objectives: To define and evaluate a radiation dose optimization process for chest computed tomography (CT) imaging. Methods: Data from unenhanced and enhanced chest CT acquisitions performed between June 2018 and January 2020 in adult patients were included in the study. Images were acquired on a Siemens SOMATOM
® Definition Edge CT. Dose values, including Dose.Length Product (DLP) and Volume CT Dose Index (CTDIvol ), were collected. Low doses (LDs, 25th percentiles), achievable doses (ADs, 50th percentiles), and diagnostic reference levels (DRLs, 75th percentiles) were calculated before and after parameter modifications. A process was defined and applied to patient data. For unenhanced chest CT, data were differentiated according to three groups: high dose (HD), optimized dose (OD), and ultra-low dose (ULD). Dosimetric changes between protocols were expressed as mean CTDIvol % (CI95%). A Mann and Whitney statistical test was used. The diagnostic quality score (DQS) of a subset of 70 randomly selected CT examinations was evaluated by one radiologist. The DQS was scored according to a three-point Likert scale: (1) poor (definite diagnosis impossible), (2) fair (evaluation of major findings possible), and (3) excellent (exact diagnosis possible). Results: Data were collected from 1929 patients. For unenhanced chest CT protocols, only one process loop was run. A dose comparison between the chest CT protocol before the use of the process and the three groups showed a decrease of −38.3% (9.7%) and −93.4% (24.2%) for OD and ULD, respectively, and an increase of +29.4% (4.7%) for HD. For the enhanced chest CT protocol, two optimization loops were performed, and they resulted in a mean dose reduction of −50.0% (2.6%) compared to the pre-optimization protocol. For all protocols, the DQS was greater than or equal to 2. Conclusions: We proposed a radiation dose optimization process for chest CT that could significantly reduce the dose without compromising diagnosis. [ABSTRACT FROM AUTHOR]- Published
- 2024
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30. Conservation and Protection Treatments for Cultural Heritage: Insights and Trends from a Bibliometric Analysis.
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Pérez-Gandarillas, Lucía, Manteca, Carmen, Yedra, Ángel, and Casas, Abraham
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BIBLIOMETRICS ,LITERATURE reviews ,HISTORIC sites ,CULTURAL property ,PROTECTION of cultural property - Abstract
Cultural heritage is a fundamental part of the society's identity, and its conservation is of great relevance as it transcends time and memory. To minimize its deterioration, cultural heritage has traditionally undergone diverse preservation and maintenance treatments, and the attention of researchers to developing new and innovative methods for state diagnosis and protection treatments has been increasing in the recent decades. Despite extensive efforts in preservation, there remains a need for comprehensive and systematic mapping of scientific research to identify emerging trends and innovations in the field. To address this gap, in this study, a literature review using a bibliometric analysis and LDA methodology was conducted to systematically map scientific research outputs on cultural heritage conservation and protection. Data were retrieved from the Scopus database, and the annual publications, countries, most-cited publications, authors, institutions, and keywords have been comprehensively analyzed, leading to the detection of research trends and contributing to the existing knowledge in the field. The findings show an increasing number of studies in this field in the last decades, particularly since 2010. Italy, home to the largest number of UNESCO heritage sites, is the most prolific country. Most of the studies are related to metal, paper, and stone as substrates to be protected. Significant progress has been made in understanding the deterioration processes through precise diagnosis and the development of innovative treatments for protection. In this sense, the latest trends have been detected, such as the use of non-invasive techniques for diagnosis and the use of nanotechnology and nature-based treatments for conservation treatments. [ABSTRACT FROM AUTHOR]
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- 2024
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31. Trends and Directions in Oats Research under Drought and Salt Stresses: A Bibliometric Analysis (1993–2023).
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Huang, Haiyan, Wang, Xiangtao, Li, Junqin, Gao, Yang, Yang, Yuting, Wang, Rui, Zhou, Zijun, Wang, Puchang, and Zhang, Yujun
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SCIENTIFIC literature ,AGRICULTURAL colleges ,FIELD crops ,BIBLIOMETRICS ,CLIMATE change ,OATS - Abstract
With global climate change leading to increasing intensity and frequency of droughts, as well as the growing problem of soil salinization, these factors significantly affect crop growth, yield, and resilience to adversity. Oats are a cereal widely grown in temperate regions and are rich in nutritive value; however, the scientific literature on the response of oat to drought and salt stress has not yet been analyzed in detail. This study comprehensively analyzed the response of oat to drought stress and salt stress using data from the Web of Science core database and bibliometric methods with R (version4.3.1), VOSviewer (version 1.6.19), and Citespace (version6.3.1.0) software. The number of publications shows an increasing trend in drought stress and salt stress in oat over the past 30 years. In the field of drought-stress research, China, the United States, and Canada lead in terms of literature publication, with the most academic achievements being from China Agricultural University and Canadian Agricultural Food University. The journal with the highest number of published papers is Field Crops Research. Oat research primarily focuses on growth, yield, physiological and biochemical responses, and strategies for improving drought resistance. Screening of drought-tolerant genotypes and transformation of drought-tolerant genes may be key directions for future oat drought research. In the field of salt-stress research, contributions from China, the United States, and India stand out, with the Chinese Academy of Agricultural Sciences and Inner Mongolia Agricultural University producing the most significant research results. The largest number of published articles has been found in the Physiologia Plantarum journal. Current oat salt-stress research primarily covers growth, physiological and biochemical responses, and salt-tolerance mechanisms. It is expected that future oat salt research will focus more on physiological and biochemical responses, as well as gene-editing techniques. Despite achievements under single-stress conditions, combined drought and salt-stress effects on oat remain understudied, necessitating future research on their interaction at various biological levels. The purpose of this study is to provide potential theoretical directions for oat research on drought and salt stress. [ABSTRACT FROM AUTHOR]
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- 2024
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32. Systemic Symptoms as Potential Predictors of Chronic Neck Pain on Initial Examination: Can Systemic Symptoms Act as a Predictor of Neck Pain?
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Park, Seo-Hyun and Keum, Dong-Ho
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NECK pain ,MUSCULOSKELETAL system diseases ,FISHER exact test ,CHRONIC pain ,MYOCARDIAL infarction ,RANGE of motion of joints - Abstract
Background: Neck pain is a prevalent musculoskeletal disorder that can cause other additional misalignments and other misalignment-induced chronic musculoskeletal diseases. Although numerous risk factors for chronic neck pain have been researched, systemic symptoms have not received the same level of investigation. The aim of this study was to analyze the link between subjective systemic symptoms and neck pain based on initial holistic interviews, with the objective of identifying potential predictive factors for neck pain. Methods: This retrospective cross-sectional study included patients hospitalized due to acute neck pain between January 2018 and August 2021. Data collected included demographic information, treatment details, neck-pain characteristics, medical history, and co-occurring symptoms regardless of their known association with neck pain. Statistical analyses, including independent t-tests, Mann–Whitney U tests, chi-squared tests, Fisher's exact tests, and correlation analyses, were performed. Results: With regard to the demographic characteristics, a significant positive correlation was observed between age and initial pain intensity (p < 0.01), while female sex was associated with changes in pain intensity (p < 0.05). Past medical conditions, including diabetes, hyperlipidemia, heart attacks, and psychological medical history, demonstrated a significant relationship with neck pain (p < 0.01, p < 0.05, p < 0.05, and p < 0.05, respectively). Hospitalization duration, cervical dizziness, limitations in the cervical range of motion (ROM), and widespread pain were significantly associated with neck pain (p < 0.05, p < 0.05, p < 0.01, and p < 0.001, respectively). Among the subjective systemic symptoms, only upper gastrointestinal (GI) disturbance displayed a significant association with neck pain (p < 0.01). Conclusions: This study identified several potential predictors of neck pain—notably, upper GI disturbances—providing a new avenue to investigate the prognostic factors of neck pain. However, further study is needed to substantiate these findings and elucidate the precise nature of these associations. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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33. Smart tourism destinations: an overview of current research trends and a future research agenda.
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Gursoy, Dogan, Luongo, Simone, Della Corte, Valentina, and Sepe, Fabiana
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TOURIST attractions ,BIBLIOTHERAPY ,CONCEPTUAL models ,BIBLIOMETRICS ,EVIDENCE gaps ,SCIENTIFIC knowledge ,TOURISM websites - Abstract
Copyright of Journal of Hospitality & Tourism Technology is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2024
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34. Non-Obstructive Kidney Transplant Dysfunction: Magnetic Resonance Evaluation
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Van Gansbeke, D., primary, Segebarth, C., additional, Toussaint, C., additional, Matos, C., additional, Gevenois, P.A., additional, Kinnaert, P., additional, and Struyven, J., additional
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- 1989
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35. Global Trends and Hotspots in Research on the Health Risks of Organophosphate Flame Retardants: A Bibliometric and Visual Analysis.
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Du, Zhiyuan, Ruan, Yuanyuan, Chen, Jiabin, Fang, Jian, Xiao, Shuo, Shi, Yewen, and Zheng, Weiwei
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BIBLIOMETRICS ,ENVIRONMENTAL sciences ,FIREPROOFING agents ,RESEARCH personnel ,PERIODIC health examinations ,PLASTICIZERS - Abstract
Background: Organophosphate flame retardants (OPFRs) are compounds with a wide range of industrial and commercial applications and are mainly used as flame retardants and plasticizers. The global consumption of OPFRs has risen rapidly in recent decades, and they have been widely detected in environmental media. Unfortunately, OPFRs have been associated with many adverse health outcomes. The issue of the health risks of OPFRs is attracting increasing attention. Therefore, there is a need to review the current state of research and trends in this field to help researchers and policymakers quickly understand the field, identify new research directions, and allocate appropriate resources for further development of the OPFR health risk research field. Methods: This study statistically analyzed 1162 relevant publications included in the Web of Science Core Collection from 2003–2023. The internal and external features of the literature, such as publication trends, countries, authors, journals, and keywords, were quantitatively analyzed and visually presented to identify the research hotspots, compositions, and paradigms of the field and to horizontally and vertically analyze the development trends and structural evolution of the field. Results: The development of the field can be divided into three stages, and the field entered a period of rapid development in 2016. China (649 papers) is the most prolific country, followed by the United States (188 papers). The authors STAPLETON HM and WANG Y have the highest combined impact. International collaboration between countries and researchers still needs to be strengthened. Science of The Total Environment is the most frequently published journal (162 papers), and Environmental Science and Technology is the most frequently cited journal (5285 citations). Endocrine disruption, developmental toxicity, and neurotoxicity are the health effects of greatest interest. Conclusions: Future research is expected to be multidisciplinary, and research hotspots may involve a comprehensive assessment of OPFR exposure in the population, exploration of the mechanisms of endocrine-disrupting effects and in vivo metabolic processes, and examination of the health effects of OPFR metabolites. [ABSTRACT FROM AUTHOR]
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- 2024
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36. Virtual Non-Contrast versus True Native in Photon-Counting CT: Stability of Density of Upper Abdominal Organs and Vessels.
- Author
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Haag, Florian, Emmrich, Shanice S., Hertel, Alexander, Rink, Johann S., Nörenberg, Dominik, Schoenberg, Stefan O., and Froelich, Matthias F.
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ERECTOR spinae muscles ,VENA cava inferior ,THORACIC aorta ,PSOAS muscles ,PORTAL vein - Abstract
The clinical use of photon-counting CT (PCCT) allows for the generation of virtual non-contrast (VNC) series from contrast-enhanced images. In routine clinical practice, specific issues such as ruling out acute bleeding require non-contrast images. The aim of this study is to evaluate the use of PCCT-derived VNC reconstructions in abdominal imaging. PCCT scans of 17 patients including early arterial, portal venous and native sequences were enrolled. VNC reconstructions have been calculated. In every sequence and VNC reconstruction, 10 ROIs were measured (portal vein, descending aorta, inferior vena cava, liver parenchyma, spleen parenchyma, erector spinae muscle, subcutaneous adipose tissue, first lumbar vertebral body, air, and psoas muscle) and density values were compared. The VNC reconstructions show significant changes in density compared to the contrast-enhanced images. However, there were no significant differences present between the true non-contrast (TNC) and any VNC reconstructions in the observed organs and vessels. Significant differences (p < 0.05) between the measured mean density values in the TNC versus VNC reconstructions were found in fat and bone tissue. The PCCT-derived VNC reconstructions seemed to be comparable to the TNC images, despite some deviations shown in the adipose tissue and bone structures. However, the further benefits in terms of specific clinical issues need to be evaluated. [ABSTRACT FROM AUTHOR]
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- 2024
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37. Uncommon Causes of Interlobular Septal Thickening on CT Images and Their Distinguishing Features.
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Donuru, Achala, Torigian, Drew A., and Knollmann, Friedrich
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PULMONARY alveolar proteinosis ,COMPUTED tomography ,IDIOPATHIC pulmonary fibrosis ,PULMONARY fibrosis ,PULMONARY edema - Abstract
Interlobular septa thickening (ILST) is a common and easily recognized feature on computed tomography (CT) images in many lung disorders. ILST thickening can be smooth (most common), nodular, or irregular. Smooth ILST can be seen in pulmonary edema, pulmonary alveolar proteinosis, and lymphangitic spread of tumors. Nodular ILST can be seen in the lymphangitic spread of tumors, sarcoidosis, and silicosis. Irregular ILST is a finding suggestive of interstitial fibrosis, which is a common finding in fibrotic lung diseases, including sarcoidosis and usual interstitial pneumonia. Pulmonary edema and lymphangitic spread of tumors are the commonly encountered causes of ILST. It is important to narrow down the differential diagnosis as much as possible by assessing the appearance and distribution of ILST, as well as other pulmonary and extrapulmonary findings. This review will focus on the CT characterization of the secondary pulmonary lobule and ILST. Various uncommon causes of ILST will be discussed, including infections, interstitial pneumonia, depositional/infiltrative conditions, inhalational disorders, malignancies, congenital/inherited conditions, and iatrogenic causes. Awareness of the imaging appearance and various causes of ILST allows for a systematic approach, which is important for a timely diagnosis. This study highlights the importance of a structured approach to CT scan analysis that considers ILST characteristics, associated findings, and differential diagnostic considerations to facilitate accurate diagnoses. [ABSTRACT FROM AUTHOR]
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- 2024
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38. Redefining Radiation Metrics: Evaluating Actual Doses in Computed Tomography Scans.
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Sabiniewicz-Ziajka, Dominika, Szarmach, Arkadiusz, Grzywińska, Małgorzata, Gać, Paweł, and Piskunowicz, Maciej
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CONE beam computed tomography ,COMPUTED tomography ,RADIATION doses ,RADIATION ,RADIATION exposure - Abstract
Background: Computed tomography (CT) contributes significantly to the collective dose from medical sources, raising concerns about potential health risks. However, existing radiation dose estimation tools, such as volume computed tomography dose index (CTDIvol), dose-length product (DLP), effective dose (ED), and size-specific dose estimate (SSDE), have limitations in accurately reflecting patient exposure. This study introduces a new parameter, size-specific dose-length product (DLPss), aiming to enhance the precision of radiation dose estimation in real-life scenarios. Methods: A retrospective analysis of 134 chest CT studies was conducted. Relationships between CTDIvol and anthropometric parameters were examined, and SSDE was calculated based on effective diameter. Additionally, the novel parameter, DLPss, was introduced, considering scan length and cross-sectional dimensions. Results: Analysis reveals variations in scan length, effective diameter, and CTDIvol between genders. Strong correlations were observed between CTDIvol and effective diameter, particularly in men. The average CTDIvol for the entire group was 7.83 ± 2.92 mGy, with statistically significant differences between women (7.38 ± 3.23 mGy) and men (8.30 ± 2.49 mGy). SSDE values showed significant gender differences, with men exhibiting higher values. The average SSDE values for women and men were 9.15 ± 2.5 mGy and 9.6 ± 2.09 mGy, respectively, with a statistically significant difference (p = 0.03). The newly introduced DLPss values ranged around 343.90 ± 81.66 mGy·cm for the entire group, with statistically significant differences between women (323.53 ± 78.69 mGy·cm) and men (364.89 ± 79.87 mGy·cm) (p < 0.05), providing a comprehensive assessment of total radiation dose. Conclusion: The study highlights the need for accurate radiation dose estimation, emphasizing the impact of CT examination parameters on dose variability. The proposed DLPss parameter offers a promising approach to enhancing precision in assessing radiation risk during CT scans. Further research is warranted to explore additional parameters for a comprehensive understanding of radiation exposure and to optimize imaging protocols for patient safety. [ABSTRACT FROM AUTHOR]
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- 2024
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39. Trends in Soil Science over the Past Three Decades (1992–2022) Based on the Scientometric Analysis of 39 Soil Science Journals.
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Jia, Lang, Wang, Wenjuan, Zvomuya, Francis, and He, Hailong
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SOIL science ,SOIL testing ,BIBLIOMETRICS ,SOIL formation ,CITATION analysis - Abstract
As one of the basic disciplines of agricultural, natural resource, and environmental science, soil science has played a critical role in global food security and socio-economic and ecological sustainability. The number of soil science journals and publications has increased remarkably with the development of soil science. However, there is a lack of systematic and comprehensive studies on the developmental trends of soil science based on journals and publications. In this study, 39 journals included under the soil science category in the 2022 Journal Citation Reports, and 112,911 publications in these journals from 1992 to 2022 were subjected to scientometric/bibliometric analysis to determine trends in publication, journal metrics, co-authorship, and research topics, in addition to general journal information. The results show that soil science ushered in a renaissance period with the number of publications, citations, impact factors, and CiteScore demonstrating an increasing trend. America and the Chinese Academy of Sciences had the most publications and citations. The most productive author published more than 400 articles. Soil science research focused mostly on its fundamental impact on the ecological environment based on the strongest citation bursts analysis of keywords. The analysis indicated that open access has increased in popularity. Current soil science journals still face a few common challenges, including an urgent need for a fairer evaluation mechanism on journal quality compared to the traditional use of single metrics as well as equity, diversity, and inclusion (EDI) in the whole editorial process. Artificial intelligence may bring new tools and more changes to the development of soil science. This study will help soil science researchers to better understand the development status and future trends of soil science. It will also guide authors in journal selection. [ABSTRACT FROM AUTHOR]
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- 2024
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40. Public–Private Partnership (PPP) in Road Infrastructure Projects: A Review of Evolution, Approaches, and Prospects.
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Esperilla-Niño-de-Guzmán, Yorela Yenifer, Baeza-Muñoz, María de los Ángeles, Gálvez-Sánchez, Francisco Jesús, and Molina-Moreno, Valentín
- Abstract
Public–private partnerships (PPPs) are a widely used procurement method for constructing, maintaining, and operating roads, constituting an alternative to the traditional public works model (TPW). This is because the efficiency of the PPP model has been highlighted over the TPW model. This study carried out a bibliometric analysis of 734 public articles from Scopus on PPPs in road infrastructure projects between 1993 and 2022. The results allow us to identify the general characteristics of the research; the most relevant articles; the most productive journals; and the most prolific authors, institutions, and countries and their main international cooperation networks, as well as to detect the main current research topics, which are: financial management, costs and pricing systems, privatization of transport infrastructure services, and sustainability. Consequently, this study provides a comprehensive overview of research on PPPs in road infrastructure projects over the last 30 years. This can reinforce and complement previous bibliometric analyses on PPPs in road infrastructure projects. [ABSTRACT FROM AUTHOR]
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- 2024
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41. Oxidative Damage and Telomere Length as Markers of Lung Cancer Development among Chronic Obstructive Pulmonary Disease (COPD) Smokers.
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Córdoba-Lanús, Elizabeth, Montuenga, Luis M., Domínguez-de-Barros, Angélica, Oliva, Alexis, Mayato, Delia, Remírez-Sanz, Ana, Gonzalvo, Francisca, Celli, Bartolomé, Zulueta, Javier J., and Casanova, Ciro
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CHRONIC obstructive pulmonary disease ,CELLULAR aging ,LUNG cancer ,LEUCOCYTES ,TELOMERES ,TUMOR markers ,SINGLE nucleotide polymorphisms ,CARCINOGENESIS - Abstract
Lung cancer (LC) constitutes an important cause of death among patients with Chronic Obstructive Pulmonary Disease (COPD). Both diseases may share pathobiological mechanisms related to oxidative damage and cellular senescence. In this study, the potential value of leucocyte telomere length, a hallmark of aging, and 8-OHdG concentrations, indicative of oxidative DNA damage, as risk biomarkers of LC was evaluated in COPD patients three years prior to LC diagnosis. Relative telomere length measured using qPCR and serum levels of 8-OHdG were determined at the baseline in 99 COPD smokers (33 with LC and 66 age-matched COPD without LC as controls). Of these, 21 COPD with LC and 42 controls had the biomarkers measured 3 years before. Single nucleotide variants (SNVs) in TERT, RTEL, and NAF1 genes were also determined. COPD cases were evaluated, which showed greater telomere length (p < 0.001) and increased serum 8-OHdG levels (p = 0.004) three years prior to LC diagnosis compared to the controls. This relationship was confirmed at the time of LC diagnosis. No significant association was found between the studied SNVs in cases vs. controls. In conclusion, this preliminary study shows that longer leucocyte telomere length and increased 8-OHdG serum levels can be useful as early biomarkers of the risk for future lung cancer development among COPD patients. [ABSTRACT FROM AUTHOR]
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- 2024
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42. A framework for assessing a country's scientific productivity based on published articles by scientists affiliated with that country.
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Hamed Golzar, Negar, Altunok, Elif, Aghabaiglou, Amir, and Külekci, Muhammed Oğuzhan
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- 2024
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43. Machine Learning and Blockchain: A Bibliometric Study on Security and Privacy.
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Valencia-Arias, Alejandro, González-Ruiz, Juan David, Verde Flores, Lilian, Vega-Mori, Luis, Rodríguez-Correa, Paula, and Sánchez Santos, Gustavo
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MACHINE learning ,SCIENTIFIC literature ,ARTIFICIAL intelligence ,BLOCKCHAINS ,BIBLIOMETRICS ,WEB databases - Abstract
Machine learning and blockchain technology are fast-developing fields with implications for multiple sectors. Both have attracted a lot of interest and show promise in security, IoT, 5G/6G networks, artificial intelligence, and more. However, challenges remain in the scientific literature, so the aim is to investigate research trends around the use of machine learning in blockchain. A bibliometric analysis is proposed based on the PRISMA-2020 parameters in the Scopus and Web of Science databases. An objective analysis of the most productive and highly cited authors, journals, and countries is conducted. Additionally, a thorough analysis of keyword validity and importance is performed, along with a review of the most significant topics by year of publication. Co-occurrence networks are generated to identify the most crucial research clusters in the field. Finally, a research agenda is proposed to highlight future topics with great potential. This study reveals a growing interest in machine learning and blockchain. Topics are evolving towards IoT and smart contracts. Emerging keywords include cloud computing, intrusion detection, and distributed learning. The United States, Australia, and India are leading the research. The research proposes an agenda to explore new applications and foster collaboration between researchers and countries in this interdisciplinary field. [ABSTRACT FROM AUTHOR]
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- 2024
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44. Structure of REDEE and EJMBE research: a bibliometric analysis.
- Author
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Ramos, Ricardo and Rita, Paulo
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BIBLIOMETRICS ,RELATIONSHIP marketing ,MANAGERIAL economics ,ENTREPRENEURSHIP ,AUTHORS - Abstract
Purpose: Evaluating existing literature can lead to a better understanding of a scientific journal's state of the art. In this sense, this study aims to analyze the global research evolution of the Revista Europea de Dirección y Economia de la Empresa (REDEE) and the European Journal of Management and Business Economics (EJMBE). Design/methodology/approach: A bibliometric analysis was conducted to acknowledge the most contributing authors, impactful articles, publication trends, keyword analysis, co-occurrence networks and collaboration networks. A total of 454 articles published between 2006 and 2022 were analyzed. Findings: The results suggest that the international strategy set in 2014 has resulted in a steadily growing number of publications and a significant increment in citations. Relationship marketing and the connections between innovation, performance and entrepreneurship are topics of interest for the EJMBE. Originality/value: Mapping existing EJMBE research through identifying the contributing authors, most impactful articles, publication trends, keyword analysis, co-occurrence networks and collaboration networks is missing to encourage new research projects. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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45. Enterprise risk management literature: emerging themes and future directions.
- Author
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Ahmad Jaber, Taha and Mohammed Shah, Sabarina
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RISK management in business ,THEMES in literature ,MANAGERIAL economics ,ECONOMIC forecasting ,ACTUARIAL risk - Abstract
Purpose: This study aims to identify the publication phase, performance and scientific contributions of research papers related to enterprise risk management (ERM) and to visualise the emerging themes in addressing volatility, uncertainty, complexity and ambiguity (VUCA). Design/methodology/approach: The biblioshiny technique based on the bibliometrix R package was used to draw journal papers' performance and scientific contributions by displaying distinctive features from the bibliometric method used in prior studies. The data was extracted from the Web of Science (WOS) and Scopus databases. Findings: Since the 1990s, ERM publication has gained momentum, and it is generally categorised into four main themes. Studies by Miller (1992) and Bromiley et al. (2015) scored the highest in global and local citations, respectively. However, the Economic Outlook ranked first in quality of publications while the Journal of Risk and Insurance topped in quantity of publications. Collaborative research mainly exists between two authors, and the dynamic number of collaborative networks is evident in the USA. Research limitations/implications: This study is limited by the filtered keywords used to generate the search on journal papers' in WOS and Scopus. It is imperative to have more comprehensive and rigorous analytics on ERM research to enable a direction for future research. Finally, ERM implementation better equips firms to mitigate risk in a VUCA environment. Originality/value: This study attempts to fill a vacuum of ERM literature, specifically in business economics, in addressing VUCA. Moreover, it covers a comprehensive predetermined period of from its inception in 1983 until 2022. [ABSTRACT FROM AUTHOR]
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- 2024
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46. Imaging in Third Molar Surgery: A Clinical Update.
- Author
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Al-Haj Husain, Adib, Stadlinger, Bernd, Winklhofer, Sebastian, Bosshard, Fabienne A., Schmidt, Valérie, and Valdec, Silvio
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THIRD molars ,PANORAMIC radiography ,MAGNETIC resonance imaging ,DENTAL extraction ,MAXILLOFACIAL surgery ,DENTITION ,TECHNOLOGICAL innovations - Abstract
Third molar surgery is one of the most common surgical procedures performed in oral and maxillofacial surgery. Considering the patient's young age and the often-elective nature of the procedure, a comprehensive preoperative evaluation of the surgical site, relying heavily on preoperative imaging, is key to providing accurate diagnostic work-up, evidence-based clinical decision making, and, when appropriate, indication-specific surgical planning. Given the rapid developments of dental imaging in the field, the aim of this article is to provide a comprehensive, up-to-date clinical overview of various imaging techniques related to perioperative imaging in third molar surgery, ranging from panoramic radiography to emerging technologies, such as photon-counting computed tomography and magnetic resonance imaging. Each modality's advantages, limitations, and recent improvements are evaluated, highlighting their role in treatment planning, complication prevention, and postoperative follow-ups. The integration of recent technological advances, including artificial intelligence and machine learning in biomedical imaging, coupled with a thorough preoperative clinical evaluation, marks another step towards personalized dentistry in high-risk third molar surgery. This approach enables minimally invasive surgical approaches while reducing inefficiencies and risks by incorporating additional imaging modality- and patient-specific parameters, potentially facilitating and improving patient management. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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47. A Bibliometric Analysis of Studies on Plant Endemism during the Period of 1991–2022.
- Author
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Wani, Zishan Ahmad, Akhter, Fareeda, Ridwan, Qamer, Rawat, Yashwant S., Ahmad, Zeeshan, and Pant, Shreekar
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BIBLIOMETRICS ,ENDEMIC plants ,BIOLOGICAL extinction ,SCHOLARLY publishing ,PROGRAMMING languages ,IDENTIFICATION - Abstract
A bibliometric analysis of 349 scholarly documents published on the topic plant nativity and endemism from 1991–2022 was carried out using the 'bibliometrix' tool, developed through the R programming language. The results revealed a significant increase in the number of publications on plant nativity and endemism research since 1991. Of the total of 349 documents that were analyzed, 38 are single authored documents, and the average number of documents per author is 0.278. Each document has received an average of 33.67 citations, with 3.18 citations per year per document. The relationship between the number of authors and the number of articles that they have published follows a power-law distribution. Based on Bradford's law, only eight were found to be the core sources. Mexico, followed by the USA, has produced the highest number of documents on plant nativity and endemism. The present study suggests that it is necessary to categorize data on endemism by floristic provinces, not by political subdivisions. Synecological studies are also needed, since endemic plants exist within communities. Models that accurately predict levels of endemism on the basis of easily measurable environmental variables should be useful for the rapid identification of endemic-rich areas. Recognition of the importance of plant endemism and the implementation of conservation measures is crucial for preserving biodiversity hotspots. Both in situ and ex situ conservation efforts are essential for protecting endemic species and preventing their extinction. By integrating these approaches, we can contribute to the long-term conservation and management of endemic plant species. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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48. Window View Preferences in Various Environmental and Activity Contexts.
- Author
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Fošner, Ajda, Zbašnik-Senegačnik, Martina, and Kristl, Živa
- Abstract
Our surroundings, as viewed through the window, have a significant impact on how we feel, how we think, and how productive we are. In order to build settings that promote pleasant emotions and support mental health, whether at home or at work, it is crucial to take the window view into account as well as any potential consequences it may have. In this study, we first conduct a bibliometric analysis of the topic using Elsevier SciVal data. Then, using a questionnaire survey, we proceed to determine what is the respondents' favourite window view and what is the reason they look through the window. The results show that the preferred window view contains greenery, and the main reason for looking through the window is mental disconnection. The Chi-Square test results suggest that there is a correlation between age and the preferred window view. Furthermore, the results also showed that there is a connection between the environment where the respondents spend the majority of their workday and the reason for looking through the window. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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49. Usefulness of Saline Sealing in Preventing Pneumothorax after CT-Guided Biopsies of the Lung.
- Author
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Roman, Andrei, Brozba, Andreea, Necula, Alexandru, Muntean, Delia Doris, Kubelac, Paul, Fekete, Zsolt, Tomuleasa, Ciprian, Csutak, Csaba, Feier, Diana, Pintican, Roxana, and Vlad, Catalin
- Subjects
PNEUMOTHORAX ,LUNGS ,CHEST tubes ,LUNG tumors ,LOGISTIC regression analysis ,BIOPSY - Abstract
This study aimed to assess the effectiveness of saline sealing in reducing the incidence of pneumothorax after a CT-guided lung biopsy. This was a retrospective case-control study of patients who underwent CT-guided biopsies for lung tumors using 18 G semiautomatic core needles in conjunction with 17 G coaxial needles. The patients were divided into two consecutive groups: a historical Group A (n = 111), who did not receive saline sealing, and Group B (n = 87), who received saline sealing. In Group B, NaCl 0.9% was injected through the coaxial needle upon its removal. The incidence of pneumothorax and chest tube insertion was compared between the two groups. Multivariate logistic regression was performed to verify the contribution of other pneumothorax risk factors. The study included 198 patients, with 111 in Group A and 87 in Group B. There was a significantly (p = 0.02) higher pneumothorax rate in Group A (35.1%, n = 39) compared to Group B (20.7%, n = 18). The difference regarding chest tube insertion was not significant (p = 0.1), despite a tendency towards more insertions in Group A (5.4%, n = 6), compared to Group B (1.1%, n = 1). Among the risk factors for pneumothorax, only the presence of emphysema (OR = 3.5, p = 0.0007) and belonging to Group A (OR = 2.2, p = 0.02) were significant. Saline sealing of the needle tract after a CT-guided lung biopsy can significantly reduce the incidence of pneumothorax. This technique is safe, readily available, and inexpensive, and should be considered as a routine preventive measure during this procedure. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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50. Incidental Indeterminate Renal Lesions: Distinguishing Non-Enhancing from Potential Enhancing Renal Lesions Using Iodine Quantification on Portal Venous Dual-Layer Spectral CT.
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van der Star, Simone, de Jong, Pim A., and Kok, Madeleine
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DUAL energy CT (Tomography) ,IODINE ,RECEIVER operating characteristic curves ,COMPUTED tomography ,IODINE deficiency - Abstract
The purpose of our study is to determine a threshold for iodine quantification to distinguish definitely non-enhancing benign renal lesions from potential enhancing masses on portal venous dual-layer spectral computed tomography (CT) to reduce the need for additional multiphase CT. In this single-center retrospective study, patients (≥18 years) scanned between April 2021 and January 2023 following the local renal CT protocol were included. Exclusion criteria were patients without renal lesions, lesions smaller than 10 mm, only fat-containing lesions, abscesses or infarction, follow-up after radiofrequent ablation, wrong scan protocol, or artefacts. Scans were performed on a dual layer detector-based spectral CT (CT 7500, Philips Healthcare, Best, The Netherlands). Iodine concentration (mgI/mL) in renal lesions was determined using spectral data. Analyses were performed for all lesions and for lesions of >30 HU on portal venous CT. Enhancement on multiphase CT (≥20 ΔHU from true unenhanced (TUE) to portal venous phase (PVP) CT) was used as reference standard. To determine thresholds for iodine concentration receiver operating characteristic (ROC) curves, area under the curve (AUC) and 95% confidence intervals were calculated. To obtain thresholds for definite (non-)enhancement, 100% sensitivity with maximum specificity and 100% specificity with maximum sensitivity were noted. Data were measured using one reader. To assess interobserver agreement, a second reader performed measurements on the PVP CT scans. A total of 103 patients (62 years ± 14, 68 men) were included. We measured 328 renal lesions, 56 enhancing lesions (17%) in 38 patients and 272 non-enhancing lesions (83%) in 86 patients. The threshold for non-enhancing lesions was 0.76 mgI/mL or lower (100% sensitivity, 76% specificity). The threshold for a definite enhancing mass was 1.69 mgI/mL or higher (100% specificity, 78% sensitivity). A total of 77% of indeterminate lesions (>30 HU on PVP CT) in our study could be definitely characterized. Renal lesions can be definitively classified as non-enhancing or enhancing on PVP spectral CT using thresholds of 0.76 mgI/mL or 1.69 mgI/mL, respectively, eliminating the need for multiphase imaging. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
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