Exploring celiac trunk parameters in median arcuate ligament syndrome: A CT study
ConclusionThis study provided valuable insights into the anatomical parameters of the Ct ans SMA in MALS patients. Despite some differences compared to normal population parameters, no evidence supported the hypothesis of a superiorly placed Ct contributing to MALS. (Source: Surgical and Radiologic Anatomy)
Source: Surgical and Radiologic Anatomy - April 15, 2024 Category: Anatomy Source Type: research
Is social media our new quitline? A descriptive study assessing youtube coverage of tobacco cessation
ConclusionsEnvironmental exposure presents significant risks for acute and chronic diseases for both smokers and nonsmokers, and specific risks for children and pregnant women, and this requires further investigation. Education for individuals, families and communities on tobacco cessation can help people achieve cessation. Social media such as YouTube promises to reach large audiences at low cost without requiring high reading literacy. Additional attention is needed to create videos with up-to-date, accurate information that can engage consumers. (Source: Journal of Preventive Medicine and Hygiene)
Source: Journal of Preventive Medicine and Hygiene - April 15, 2024 Category: International Medicine & Public Health Authors: Aysha Jawed, Anna Hogan Source Type: research
Location, speciation, and quantification of carbon in silica phytoliths using synchrotron scanning transmission X-ray microspectroscopy
by Djanira R. Negrao, Julio C. Cezar, Fabiano E. Montoro, Jian Wang, Charles W. Rice, Carlos E. Driemeier
Phytoliths of biogenic silica play a vital role in the silicon biogeochemical cycle and occlude a fraction of organic carbon. The location, chemical speciation, and quantification of this carbon within phytoliths have remained elusive due to limited direct experimental evidence. In this work, phyt oliths (bilobate morphotype) from the sugarcane stalk epidermis are sectioned with a focused ion beam to produce lamellas (≈10 × 10 μm2 size, (Source: PLoS One)
Source: PLoS One - April 15, 2024 Category: Biomedical Science Authors: Djanira R. Negrao Source Type: research
Prognostic factors for survival in unresectable stage III EGFR mutation-positive lung adenocarcinoma: impact of pre-CCRT PET-CT
Conclusion
Pre-CCRT staging with PET-CT in patients with unresectable EGFR mutation-positive adenocarcinoma of clinical stage IIIA–IIIC was associated with enhanced survival. Independent prognostic factors were also identified. (Source: Thorax)
Source: Thorax - April 15, 2024 Category: Respiratory Medicine Authors: Lin, W.-C., Chen, W.-M., Shia, B.-C., Wu, S.-Y. Tags: Thorax Lung cancer Source Type: research
Dual time-point [18F]FDG PET imaging for quantification of metabolic uptake rate: Evaluation of a simple, clinically feasible method
Semi-quantitative analysis of positron emission tomography (PET) images is commonly performed by measuring the standardized uptake value (SUV) [1 –3]. However, several factors can affect quantification via a single static PET scan at a late time-point post-injection (p.i.) [4]. PET radiopharmaceutical distribution is a dynamic process, and a compartmental model can describe the underlying mechanisms and provide additional kinetic parameters related to the underlying pathology. While several studies have shown the significant potential of dynamic imaging [3–10], this approach has some limitations for routine clinical us...
Source: Physica Medica: European Journal of Medical Physics - April 15, 2024 Category: General Medicine Authors: Rezvan Samimi, Alireza Kamali-Asl, Yashar Ahmadyar, J örg van den Hoff, Parham Geramifar, Arman Rahmim Tags: Original paper Source Type: research
Torsion of the spiral colon in cattle – a retrospective analysis of 58 cases
Torsion of the spiral colon (TSC) describes twisting of the spiral colon around its mesentery. The present study reviewed the medical records of 58 cows and heifers with TSC and described the findings, treatme... (Source: Acta Veterinaria Scandinavica)
Source: Acta Veterinaria Scandinavica - April 15, 2024 Category: Veterinary Research Authors: Ueli Braun, Christian Gerspach, Claudia Volz, Monika Hilbe and Karl Nuss Tags: Research Source Type: research
Integrating Multi-omics Data for Alzheimer ’s Disease to Explore Its Biomarkers Via the Hypergraph-Regularized Joint Deep Semi-Non-Negative Matrix Factorization Algorithm
AbstractAlzheimer ’s disease (AD) is a progressive and irreversible neurodegenerative disorder. Its etiology may be associated with genetic, environmental, and lifestyle factors. With the advancement of technology, the integration of genomics, transcriptomics, and imaging data related to AD allows simultaneous expl oration of molecular information at different levels and their interaction within the organism. This paper proposes a hypergraph-regularized joint deep semi-non-negative matrix factorization (HR-JDSNMF) algorithm to integrate positron emission tomography (PET), single-nucleotide polymorphism (SNP), and gene ex...
Source: Journal of Molecular Neuroscience - April 15, 2024 Category: Neuroscience Source Type: research
Prognostic value of pre-treatment [18F] FDG PET/CT in recurrent nasopharyngeal carcinoma without distant metastasis
[18 F]-Fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) has the ability to detect local and/or regional recurrence as well as distant metastasis. We aimed to evaluate the prog... (Source: BMC Cancer)
Source: BMC Cancer - April 15, 2024 Category: Cancer & Oncology Authors: Zhe Dong, Gao-Yuan Wang, Dong-Yu Dai, Guan-Jie Qin, Ling-Long Tang, Cheng Xu and Jun Ma Tags: Research Source Type: research
Aortic valve perivascular adipose tissue computed tomography attenuation in patients with aortic stenosis
Conclusions
CT-derived aortic valve perivascular adipose tissue attenuation is not associated with AS disease severity, activity or progression suggesting that it has no value in the investigation and management of patients with AS. (Source: Heart)
Source: Heart - April 15, 2024 Category: Cardiology Authors: Botezatu, S. B., Yu, X., Meah, M. N., Williams, M. C., Dey, D., Newby, D. E., Tzolos, E., Dweck, M. R. Tags: Valvular heart disease Source Type: research
Simulation study of digital waveform-driven quadrupole mass filter operated in higher stability regions for high-resolution inductively coupled plasma mass spectrometry
CONCLUSION: The results demonstrate that the use of a frequency-scanned, duty-cycle-modulated digital QMF as the mass analyzer for ICP-MS has the potential to produce high resolution while maintaining considerable transmission, thus overcoming most spectral interferences in elemental MS.PMID:38616299 | DOI:10.1002/rcm.9753 (Source: Rapid Communications in Mass Spectrometry : RCM)
Source: Rapid Communications in Mass Spectrometry : RCM - April 14, 2024 Category: Chemistry Authors: Rui Hu Alexander Gundlach-Graham Source Type: research
Strain visualization using large-angle convergent-beam electron diffraction
In this study, we report a strain visualization method using large-angle convergent-beam electron diffraction (LACBED).1 We compare the proposed method with the strain maps acquired via STEM-NBD, a combination of scanning transmission electron microscopy (STEM) and nanobeam electron diffraction (NBD). Although STEM-NBD can precisely measure the lattice parameters, it requires a large amount of data and personal computer (PC) resources to obtain a two-dimensional strain map. Deficiency lines in the transmitted disk of LACBED reflect the crystalline structure information and move, curve, or disappear in the deformed area. Pr...
Source: Ultramicroscopy - April 14, 2024 Category: Laboratory Medicine Authors: Fumihiko Uesugi Chiaki Tanii Naoyuki Sugiyama Masaki Takeguchi Source Type: research
Secondary-electron imaging of bulk crystalline specimens in an aberration corrected STEM
In this study, we explore the practicality of scanning transmission electron microscope (STEM) imaging with secondary electrons (SE), using a silicon-wedge specimen having a maximum thickness of 18 μm. We find that the atomic structure is present in the entire thickness range of the SE images although the background intensity increases moderately with thickness. The consistent intensity of secondary electron (SE) images at atomic positions and the modest increase in background intensity observed in silicon suggest a limited contribution from SEs generated by backscattered electrons, a conclusion supported by our multislic...
Source: Ultramicroscopy - April 14, 2024 Category: Laboratory Medicine Authors: Sooyeon Hwang Lijun Wu Kim Kisslinger Judith Yang Ray Egerton Yimei Zhu Source Type: research
The relationship between bullying victimization and problematic behaviors: A focus on the intrapersonal emotional competence and interpersonal social competence
CONCLUSIONS: This study not only contributed to our comprehension of the underlying mechanisms connecting bullying victimization and adolescent problematic behaviors, but also holds significance for policy development and practice.PMID:38615412 | DOI:10.1016/j.chiabu.2024.106800 (Source: Child Abuse and Neglect)
Source: Child Abuse and Neglect - April 14, 2024 Category: Child Development Authors: Chaoxin Jiang Jiaming Shi Source Type: research
Regression analysis for the determination of microplastics in sediments using differential scanning calorimetry
We present a thermo-analytical method that enables the identification and quantification of different polymer types in sediment and sand composite samples based on their phase transition behavior. Differential scanning calorimetry (DSC) was performed, and the results were evaluated by using different regression models. The melting and crystallization enthalpies or the change in heat capacity at the glass transition point were measured as regression analysis data. Ten milligrams of sea sand was spiked with 0.05 to 1.5 mg of microplastic particles (size: 100 to 200 µm) of the semi-crystalline polymers LD-PE, HD-PE, PP, PA6,...
Source: Environmental Science and Pollution Research International - April 14, 2024 Category: Environmental Health Authors: Sven Schirrmeister Lucas Kurzweg Xhoen Gjashta Martin Socher Andreas Fery Kathrin Harre Source Type: research
Structural simulation and performance evaluation of a novel synthesized ZIF in the adsorption of MO from aqueous solutions
This study synthesizes and applies a novel structured ZIF with organic ligand of 2-methyl imidazole and metal salt of copper (II) sulfate as adsorbent. Its morphology and structure were investigated using Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscope, field emission scanning electron microscope, energy dispersive X-ray spectrometry, and mapping analysis. After structural analysis, the adsorbent structure was simulated and determined using Avogadro and Gaussian software. The removal efficiency of prepared ZIF in the removal of methyl orange from aqueous solution was evaluated. The ...
Source: Environmental Science and Pollution Research International - April 14, 2024 Category: Environmental Health Authors: Vida Ravankhah Sohrab Fathi Source Type: research