Bosonization of Admissible Representation of Uq(sl2) at level -1/2

We construct a representation of Uq(sl2) at level -1/2 by using the bosonic Fock spaces. The irreducible modules are obtained as the kernel of a certain operator, in contrast to the construction by Feingold and Frenkel for q = 1 where such a procedure is not necessary. We also bosonize the q-vertex operators associated with the vector representation.     

ADENYLATE KINASE BOUND TO THE CHROMATOPHORE MEMBRANES OF Rhodobactor spheroides G1C

Transformation of adenylates (AMP, ADP and ATP) by washed chromatophore membranes of Rhodobactor spheroides G1C in the dark and in the light indicated the functions of ATPase (ADP + Pi in equilibrium ATP) and of an adenylate kinase (2ADP in equilibrium AMP + ATP). The activity of adenylate kinase of the chromatophores was not inhibited by AP5A, and persisted even after sonication in the presence of EDTA or CaCl2; the results suggested the presence of an adenylate kinase bound to the chromatophore membrane. In search of the enzyme, the supernatant after sonication of the chromatophores in the presence of EDTA was subjected to a molecular sieve and then to ion-exchange HPLC; a fraction with high specific adenylate kinase activity, containing a very sharp peak at 55 kDa, was isolated. Preliminary characterization indicated that it is different from the well-documented water-soluble 33 kDa adenylate kinase.     

Differences in muscle thickness and echo intensity between stroke survivors and age- and sex-matched healthy older adults

Objective: The stroke survivors exhibit change in muscle quantity and quality compared to healthy older adults. This study aimed to compare the muscle thickness (MT) and echo intensity (EI) values of individual muscles between stroke survivors and age- and sex-matched healthy older adults. Methods : In total, 27 stroke survivors and 34 healthy older adults participated in this study. The MT and EI values of the following muscles were assessed from transverse ultrasound images: rectus abdominis (RA), external oblique, internal oblique, transversus abdominis, rectus femoris, vastus intermedius (VI), vastus lateralis (VL), vastus medialis (VM), tibialis anterior (TA), gastrocnemius (Gas), and soleus (Sol). The MT and EI values of these muscles were compared between stroke survivors and healthy older adults. Results : The MT values of the VL, VM, and RA on the non-paretic sides were significantly higher and those of the TA, Gas, and Sol on the paretic sides were significantly lower in the stroke survivors than in the healthy older adults (P < 0.05). The EI values of the VI, VL, VM, TA on the paretic sides and those of the Gas on both the paretic and non-paretic sides were significantly higher in the stroke survivors than in the healthy older adults (P < 0.05). Conclusion : Stroke survivors seem to develop muscle hypertrophy of the non-paretic thigh muscles owing to a compensatory strategy. In addition, the lower-leg muscles on the paretic side of stroke survivors tend to show both quantitative and qualitative muscle changes.