Publications by authors named "C A Zahn"

In the future of higher education, student learning will become more virtual and group-oriented, and this new reality of academic learning comes with challenges. Positive social interactions in virtual synchronous student learning groups are not self-evident but need extra support. To successfully support positive social interactions, the underlying group processes, such as collaborative group engagement, need to be understood in detail, and the important question arises: How can collaborative group engagement be assessed in virtual group learning settings? A promising methodological approach is the observation of students' non-verbal behavior, for example, in videoconferences.

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Background: Dermatologic conditions are estimated to account worldwide for approximately 8% of all visits at emergency departments (EDs). Although rarely life-threatening, several dermatologic emergencies may have a high morbidity. Little is known about ED consultations of patients with dermatological emergencies and their subsequent hospital disposal.

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Article Synopsis
  • Raynaud's syndrome is commonly associated with autoimmune diseases and requires proper diagnosis to differentiate it from other similar conditions.
  • Distinguishing painful Raynaud's mimickers is crucial because they can increase patient stress and lead to unnecessary medical procedures.
  • The review aims to educate on Raynaud's syndrome, identify painful mimickers, and provide updated recommendations for diagnosis and management.
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Tuning the photophysical properties of iron-based transition-metal complexes is crucial for their employment as photosensitizers in solar energy conversion. For the optimization of these new complexes, a detailed understanding of the excited-state deactivation paths is necessary. Here, we report femtosecond transient mid-IR spectroscopy data on a recently developed octahedral ligand-field enhancing [Fe(dqp)] () complex with dqp = 2,6-diquinolylpyridine and prototypical [Fe(bpy)] ().

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The aim of this study is to develop a core outcome set for the frequency and modality of prenatal care visits. A consensus development study was conducted in the United States with participants, including 31 health care professionals, 12 public policy members or public health payers, and 18 public members, representing 24 states. A modified Delphi method and modified nominal group technique were utilized.

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