Abstract: A system for collaborative video recording is described. The system may include a reference clock configured to track a reference time. The system may provide, to a plurality of recording devices, a synchronization code for a collaborative video recording session. The system may identify the plurality of recording devices as participants in the collaborative video recording session. The collaborative video recording session may include broadcasting one or more synchronization signals to synchronize the plurality of recording devices to the reference time tracked by the reference clock. The collaborative video recording session may include receiving a plurality of videos from the plurality of recording devices, wherein the plurality of videos comprise timestamps based on synchronization to the reference time. The collaborative video recording session may include generating a shared timeline for the plurality of videos, wherein the shared timeline synchronizes the timestamps between the plurality of videos.

Abstract: A process of welding fittings to ends of a double wall pipe comprising forming a first welded joint between an inner pipe and an inner receiver of a first fitting; forming a second welded joint between an outer pipe and an outer receiver of the first fitting; forming a third welded joint between the outer pipe and an outer receiver of a second fitting; and forming a fourth welded joint between the inner pipe and an inner receiver of the second fitting.

Abstract: A process of welding fittings to ends of a double wall pipe comprising forming a first welded joint between an inner pipe and an inner receiver of a first fitting; forming a second welded joint between an outer pipe and an outer receiver of the first fitting; forming a third welded joint between the outer pipe and an outer receiver of a second fitting; and forming a fourth welded joint between the inner pipe and an inner receiver of the second fitting.

Abstract: Process for the preparation of substantially pure polymorphic Form 1 of clopidogrel hydrogensulfate, wherein the reaction of optically active clopidogrel base with sulfuric acid is carried out in the mixture of at least two solvents, chosen from group I, comprising aliphatic ethers, and from group II, comprising ketones, esters of C1-C3 carboxylic acids and aliphatic alcohols C1-C4, primary, secondary and tertiary aliphatic alcohols C1-C4, then the resulting suspension is stirred until at least 70% of amorphous clopidogrel hydrogensulfate formed is transformed into polymorphic Form 1 of clopidogrel hydrogensulfate, and finally, the crystalline solid is isolated from the reaction mixture and subject to additional work-up procedure, aiming at the formation and stabilization of polymorphic Form 1.

Abstract: A set of geometric construction pieces, units, or blocks is provided including one large central piece and four pair of decreasingly smaller pieces which can be formed together to form a nested hollow cube for storage purposes. The pieces are manually separable and may be reconfigured or rebuilt to form a plurality of different and distinct geometrical sculptural designs, patterns and structures from the pieces thereof. The set includes a large single central piece formed from six identical, elongated, rectangular legs configured as a single or integral piece forming a partial external skeleton of the nested storage cube such that each face of the cube includes only one pair of adjacent sides with the diametrically opposite face including only the opposite pair of adjacent sides so as to provide an opening into the hollow interior of the piece.