Results 41 to 50 of about 75,516 (225)
This is a description of a dedifferentiated liposarcoma seen in a 27-year-old female patient. The tumor originated from the vallecula and contains distinctive bodies.
Serdar Ugras, Markku Miettinen
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ABSTRACT Extracellular vesicle therapies have been developed for tissue repair, but how donor‐cell senescence reshapes vesicle‐mediated mitochondrial transfer remains unclear. Here, we show that senescent adipose‐derived stem cells (ADSCs) redirect damaged mitochondria into microvesicles (MVs), converting protective vesicles into pro‐degenerative ...
Zixuan Ou +21 more
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The article discusses the category of finds from sites of the Trypillia CII stage – ceramic spindle whorls. Such finds are relatively numerous. They were found in the pits, as well as among the ruins of burnt houses.
Burdo Natlia
doaj
A long-term systematic international excavation project has attested the existence of a wide range of past human activities in the emporion Pistiros. An assemblage of artefacts indicating the conduct of different economic activities on the site includes ...
Malgorzata Grzybalska
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Calcifying Fibrous Tumor of the Jejunum in a 27-year-old Primigravid
The most common mesenchymal tumors of the gastrointestinal tract are gastrointestinal stromal tumors (GIST) and smooth muscle neoplasms; however, other soft tissue tumors may also present in the intestines and cause diagnostic dilemmas.
Marvin Masalunga, Jose Carnate Jr.
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For musculoskeletal robots, this study proposes a purely mechanical reflex module. Specifically, this module implements a length feedback mechanism without electronics, enabling autonomous contraction of an artificial muscle once its length exceeds a threshold.
Shunsuke Koseki +2 more
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Length-dependent anisotropic scaling of spindle shape [PDF]
Spindle length varies dramatically across species and during early development to segregate chromosomes optimally. Both intrinsic factors, such as regulatory molecules, and extrinsic factors, such as cytoplasmic volume, determine spindle length scaling ...
Sébastien Besson +5 more
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This paper discusses the technological exploitation of bone at the tell settlement of Vitanesti (southern Romania). A total of 307 artefacts from the Gumelnita B1 level were analysed for this study, which can be assigned to four product and sub-product ...
Monica Mărgărit +4 more
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An Active Knee–Ankle–Foot Orthosis With Torque‐Dense, Low‐Impedance Knee Actuation
This article presents the simulation, design, and clinical validation of a robotic active KAFO with torque‐sensitive actuation. By passively and continuously adapting the transmission ratio in response to the knee torque, the torque‐sensitive actuator overcomes the tradeoff between torque, weight, and impedance observed in conventional robot actuators,
Brendon Ortolano +4 more
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The article discusses a set of issues concerning exclusive spindle whorls made of pink slate, which were mass-produced using craft techniques in the 10th-12th/13th centuries in Kyivan Rus’ (the Ovruch region in Polissia, formerly Volhynia – present-day ...
Michał Kara
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