Using [1 1 C]-deoxy-D-glucose and positron emission tomography (PET), the authors measured brain metabolism in I 8 patients with chronic schizophrenia to assess which of the metabolic measures from two test conditions was more closely related to the patients ’ differing clinical characteristics. The two conditions were resting and activation, and an eye tracking task was used. Patients with more negative symptoms showed lower global metabolic rates and more severe hypofrontality than did the patients with fewer negative symptoms. Differences among the patients were distinguished by the task: sicker patients failed to show a metabolic activation response. These findings suggest that cerebral metabolic patterns

dioxide transcritical cycles. Unfortunately relevant discrepancies exist among different phenomenological correlations which have been suggested throughout the last years for predicting the convective heat transfer in mini/micro channels of carbon dioxide under cooling conditions close to the critical

We construct approximate formulas for the O(α 3 s) QCD contributions to the vector current correlator, which is valid for arbitrary values of momenta and masses. The derivation is based on conformal mapping and the Padé approximation procedure and incorporates known expansions in the low energy

New properties of the quark correlator are found via equations of motion. As a first result, approximate relations can be established among the ”soft ” distribution functions; one such relation may help in determining the quark transversity in a nucleon. Secondly, the Q 2 dependence of the T

A fundamental goal in QCD is to understand the non-perturbative structure of hadrons at the amplitude level—not just the single-particle flavor, momentum, and helicity distributions of the quark constituents, but also the multi-quark, gluonic, and hidden-color correlations intrinsic to hadronic

the neuronal contrast sensitivity (contrast gain), one could infer that attention changes stimulus appearance. Surprisingly, few studies have directly investigated this issue. Here we developed a psychophysical method to directly assess the phenomenological correlates of attention in humans. We show

The strong similaritybetween the magnetohydrodynamic (MHD) turbulence and initially isotropic turbulence subject to rotation is noted. We then apply the MHD phenomenologies of Kraichnan and Matthaeus & Zhou to rotating turbulence. When the turbulence is subject to a strong rotation, the energy

We briefly review the basic theoretical results on bosonic back-to-back correlations (bBBC) and compare our predictions with the first experimental search for squeezed corre-lations of K+K − pairs, performed by PHENIX. The hadronic squeezed correlations are very sensitive to the functional form

and hopelessness—define correlated indices that help discriminate depressed from anxious states. We view this integration of the cognitive and emotional literatures as providing evidence for a comprehensive map of the emotional and cognitive phenomenology in depression and anxiety. KEY WORDS: depression; anxiety

, and I discuss remaining open questions associated with the description of the freeze-out process. I argue that while the expansion process is now well understood, our knowledge of initial conditions is still poor. Recent analyses of two-particle correlations have revealed fine structures known as ridge