Lymphoblastic Lymphoma with Convoluted Nuclei

Abstract

A clinically homogeneous population of patients who presented with lymphoblastic lymphoma of convoluted nuclear type was isolated using a histopathological criterion that can easily be applied by trained pathologists. This disease type preferentially affects young male patients, in over half of whom there is initial mediastinal involvement. There is a tendency for the disease to become leukemic and to invade the central nervous system. In spite of heavy chemotherapy and early neuromeningeal prophylaxis, the prognosis is poor.

Quark flavor distribution functions for the octet baryons in the chiral quark constituent model

“…The χCQM result forū N /d N is 0.652 and is clearly in agreement with the latest DIS results available for the case of nucleonū N /d N = 0.67 ± 0.06 [16]. It is also quite in agreement with the results of Drell-Yan experiment givingū N /d N = 0.51 ± 0.09 [17]. For the case ofū N −d N , the χCQM gives −0.118 which is completely in agreement with the result of the latest Fermilab E866 experimentū N −d N = −0.118 ± 0.018 [16].…”

“…From Table IV and Eqs. (31) and (32) [14,16,17]. The χCQM result forū N /d N is 0.652 and is clearly in agreement with the latest DIS results available for the case of nucleonū N /d N = 0.67 ± 0.06 [16].…”

“…Using the above set of parameters, the results of our calculations pertaining to the the sea quark flavor distribution functions and related flavor dependent functions discussed above for the case of N, Σ, Ξ and Λ baryons, have been presented in Table IV. The present experimental situation, for the case of N, as obtained from the DIS and Drell-Yan experiments [14,16,17]…”

Nucleon structure functions and longitudinal spin asymmetries in the chiral quark constituent model

“…The data on the asymmetry of the nucleons as well as the ratio of neutron and proton unpolarized structure functions disagrees with the predictions of NQM. In addition to this, major surprise has been revealed in the famous DIS experiments by the New Muon Collaboration (NMC) [12], Fermilab E866 [13], Drell-Yan cross section ratios of the NA51 experiments [14] and more recently by HERMES [15]. These experiments established the violation of Gottfried sum rule (GSR) ( 1 0 [d(x) −ū(x)]dx) [16] confirming the sea quark asymmetry of the unpolarized quarks in the case of nucleon.…”

Electromagnetic and axial-vector form factors of the quarks and nucleon

“…The spin contribution of the strange quarks in the nucleon is a nontrivial aspect and is of intense theoretical interest because of model assumptions and experimental limitations. Further, the results revealed in the famous DIS experiments by the New Muon Collaboration (NMC) [13,14], Fermilab E866 [15][16][17], Drell-Yan cross section ratios of the NA51 experiments [18] and HERMES [19] have revealed the presence of sea quarks indicating more subtle dynamics which should be nonperturbative in nature.…”