• Book : 18(1)
• Pub. Date : 2025
• Page : pp.101200
• Keyword :

• Book : 1053()
• Pub. Date : 2025
• Page : pp.122951
• Keyword :

• Book : 558()
• Pub. Date : 2025
• Page : pp.165565
• Keyword :

• Book : 1053()
• Pub. Date : 2025
• Page : pp.122973
• Keyword :

Dual-energy computed tomography (DECT) is a powerful imaging modality with diverse clinical applications. Unlike conventional CT, DECT acquires images at 2 energy levels to precisely identify and quantify various tissue types. There are several DECT acquisition techniques, each with distinct advantages and disadvantages related to radiation dose, image quality, and other considerations. Material decomposition algorithms are applied to DECT imaging data to separate tissues into their constituent components such as iodine, calcium, or uric acid. Postprocessing techniques generate specialized images and quantitative maps by adjusting the attenuation of each component. For example, removing the attenuation from iodine generates virtual noncontrast images. Material-specific maps, such as uric acid or gout maps, overlay a material’s specific attenuation on a standard CT scan to map their distribution. DECT improves everyday interpretation as hypervascular lesions can be more easily identified, contrast enhancement can be determined on a single postcontrast acquisition, imaging artifacts can be reduced, and noncontrast scans can be generated without additional radiation to patients.

• Book : 48(1)
• Pub. Date : 2025
• Page : pp.1-7
• Keyword :

• Book : 227()
• Pub. Date : 2025
• Page : pp.112361
• Keyword :

• Book : 45(3)
• Pub. Date : 2025
• Page : pp.117068
• Keyword :

• Book : 258(1)
• Pub. Date : 2025
• Page : pp.124536
• Keyword :

Abstract

Tungsten (W) impurity control is critical for plasma performance and a priority for ITER. The simultaneous reduction of W and rotation in the core region induced by resonant magnetic perturbations (RMPs) has been found and understood in EAST. A positive feedback loop between the W and rotation is first proposed, resulting in core W accumulation and high rotation even in low-torque plasma before the RMP application. This cycle can be reversed by the edge rotation braking induced by RMP, causing a significant simultaneous reduction of W concentration and rotation. These new mechanisms are based on several repeatable experiments and confirmed by the modeling results from TGYRO and NTVTOK. It provides a new understanding of the RMP effects on W and rotation and can be used for W and rotation control in future reactors.

• Book : 65(1)
• Pub. Date : 2025
• Page : pp.016009
• Keyword :

How does one’s connectedness in their social relationships affect their health? For a long time, this question has piqued the interest of sociologists. From Durkheim’s theory of suicide to recent empirical studies in medical sociology, the positive association between social integration and well-being has been well established. In this paper, we revisited this topic by focusing on how different sources of social contact is associated with self-rated health in Turkey. To do so, we examined how contact with a close friend, a parent, a sibling, and other family member - outside of one’s nuclear family - compares in terms of their association with self-rated health by using ISSP Social Network Data. We found that frequency of contact with a parent and other family member showed statistically significant and positive associations with self-rated health in some models, which was not the case for a sibling. In the full model accounting for all contact variables, however, only the frequency of contact with a close friend had a statistically significant and positive association with self-rated health. This study aims to start a discussion about the growing importance of non-kin ties in people’s lives in Turkey despite the increasing familialism in Turkish politics and social policymaking. Policymakers and social workers tackling issues such as social isolation, social exclusion, and loneliness in Turkey should consider the prevalence of non-kin networks on individuals’ well-being.

• Book : 42(1)
• Pub. Date : 2025
• Page : pp.227-242
• Keyword :