Abstract: A crystal ingot puller includes a crucible for holding a crystal melt, a crystal puller housing that defines a growth chamber, and a polycrystalline feed system for supplying chunk polycrystalline to the crucible. The polycrystalline feed system includes a feed tube having an outer sidewall, an inlet end and an outlet end, and a cooling jacket surrounding the outer sidewall of the feed tube at the outlet end of the feed tube. The cooling jacket cools the outlet end during operation of the ingot puller.

Abstract: Disclosed are methods, compounds, and compositions useful for increasing autophagy and promoting longevity. The methods, compounds, and compositions relate to urolithins and urolithin precursors and use thereof. Certain urolithins are represented by Formula I, while certain urolithin precursors are represented by Formula IV. The urolithin may be urolithin A, urolithin B, urolithin C, or urolithin D. The urolithin precursor may be ellagic acid or an ellagitannin. The methods include in vivo, ex vivo, and in vitro uses of the compounds and compositions.

Abstract: Disclosed are methods, compounds, and compositions useful for increasing autophagy and promoting longevity. The methods, compounds, and compositions relate to urolithins and urolithin precursors and use thereof. Certain urolithins are represented by Formula I, while certain urolithin precursors are represented by Formula IV. The urolithin may be urolithin A, urolithin B, urolithin C, or urolithin D. The urolithin precursor may be ellagic acid or an ellagitannin. The methods include in vivo, ex vivo, and in vitro uses of the compounds and compositions.

Abstract: A transaction request generated from a first computer device in a first transaction database is stored. The transaction request is provided to a plurality of subscriber computer devices, the subscriber computer devices subscribed to the first transaction database and at least one keyword associated with the transaction request. A plurality of transaction bids from at least one of the subscriber computer devices are received. The transaction bids are provided to the first computer device. Responsive to the first computer device selecting at least one of the transaction bids, a network session is established between the first computer device and a selected subscriber computer device associated with at least one of the selected transaction bids.