Results 141 to 150 of about 1,411 (284)

On partial isometries with no isometric part [PDF]

Pacific Journal of Mathematics, 1976
openaire   +2 more sources

Ordered $*$-Semigroups and a $C^*$-Correspondence for a Partial Isometry

, 2013
Certain $*$-semigroups are associated with the universal $C^*$-algebra generated by a partial isometry, which is itself the universal $C^*$-algebra of a $*$-semigroup. A fundamental role for a $*$-structure on a semigroup is emphasized, and ordered and matricially ordered $*$-semigroups are introduced, along with their universal $C^*$-algebras.
openaire   +4 more sources

Similar dynamic tibiofemoral movements during jump‐landing and walking but distinct hamstrings strength across ACL reconstruction autograft types at mid‐term follow‐up

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Dynamic tibiofemoral movements following anterior cruciate ligament reconstruction (ACLR) with quadriceps tendon (QT) autografts have not yet been compared to other autografts. We aimed to compare dynamic anterior tibial translation (ATTd) and internal tibial rotation (ITRd) during jump‐landing and walking among patients with QT, bone ...
Tom Vendrig, Michèle N. J. Keizer, Reinoud W. Brouwer, Han Houdijk, Roy A. G. Hoogeslag   +4 more
wiley   +1 more source

Targeting ligament boundaries rather than alignment boundaries in augmented‐reality‐assisted total knee arthroplasty ensures comparable gait patterns between operated and contralateral limbs

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Modern personalised total knee arthroplasty (TKA) techniques aim to mimic natural knee kinematics by focusing on soft‐tissue dynamics rather than static alignment. However, a consistent definition of the optimal ligamentous balance has not yet been established.
Michael Engl, Fjorela Qordja, Guido Bocchino, Giulio Maccauro, Sebastian Schaller, Andrea Giordano Salvi, Luca De Berardinis, Michele Paolo Festini Capello, Pieralberto Valpiana, Pier Francesco Indelli   +9 more
wiley   +1 more source

Decomposition theorems for partial isometries

Journal of Mathematical Analysis and Applications, 1970
Erdelyi, I, Miller, F.R
openaire   +1 more source

Impact of hamstring versus quadriceps tendon graft on thigh muscle strength and surface electromyography activity after anterior cruciate ligament reconstruction

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To compare quadriceps tendon (QT) and hamstring tendon (HT) autografts regarding isometric thigh muscle strength, surface electromyography (sEMG) activity and clinical outcomes following anterior cruciate ligament reconstruction (ACLR).
Benjamin Forquignon, Tobias Drenck, Matthias Krause, Ralph Akoto, Karl‐Heinz Frosch, Götz Welsch, Alexander Korthaus, Grégoire Thürig, Dimitris Dalos   +8 more
wiley   +1 more source

Superior patient‐reported clinical outcomes after patient‐individual total knee arthroplasty compared with off‐the‐shelf robotic‐assisted total knee arthroplasty in valgus knee phenotypes

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To compare early patient‐reported clinical outcomes of patient‐individual total knee arthroplasty (TKA) with individualized trochlear design versus robotic‐assisted TKA using off‐the‐shelf implants in patients with valgus knee phenotypes and pronounced femoral valgus (lateral distal femoral angle [LDFA] < 85°) at 3 and 12 months ...
Lars‐Rene Tuecking, Peter Savov, Mara Hold, Ricarda Stauss, Henning Windhagen, Max Ettinger   +5 more
wiley   +1 more source

Nutrition and rehabilitation after anterior cruciate ligament reconstruction: A systematic review

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose As the impact of nutrition on rehabilitation and return to sport (RTS) after ACL reconstruction (ACLR) remains largely unexplored, this review aimed to review the current evidence on the role of nutrition in rehabilitation outcomes for ACLR patients, with as ultimate goal a safer and more successful RTS.
Shaniya Raghoebar, Caroline Roozenboom‐van Vliet, Wybren van der Wal, Wouter Welling, Daan Boersma, Ellen Oosting, Johannes Zwerver, Marco Mensink   +7 more
wiley   +1 more source

One class of C *-algebras generated by a family of partial isometries and multiplicators

, 2020
We considera C *-subalgebra of the algebra of all bounded operators on the Hilbert space of square-summable functions defined on some countable set. The algebra under consideration is generated by a family of partial isometries and the multiplier algebra
Kuznetsova A., Patrin E.
core  

Regeneration of the semitendinosus tendon and muscle after isolated semitendinosus harvest for primary anterior cruciate ligament reconstruction: A systematic review

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To systematically evaluate the morphology, temporal evolution and musculoskeletal adaptations associated with semitendinosus tendon (ST) and muscle (SM) regeneration after isolated ST autograft harvest for primary anterior cruciate ligament reconstruction (ACLR).
Maximilian Heinz, Jonathan Lettner, Hassan Tarek Hakam, Nikolai Ramadanov, Maciej Daszkiewicz, Robert Prill, Roland Becker, Laura Schaefer   +7 more
wiley   +1 more source