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Beam-line equipment was upgraded for experiment E08-027 (g2p) in Hall A at Jefferson Lab. Two beam position monitors (BPMs) were necessary to measure the beam position and angle at the target. A new BPM receiver was designed and built to handle the low beam currents (50-100 nA) used for this experiment. Two new super-harps were installed for calibrating the BPMs. In addition to the existing fast raster system, a slow raster system was installed. Before and during the experiment, these new devices were tested and debugged, and their performance was also evaluated. In order to achieve the required accuracy (1-2 mm in position and 1-2 mrad in angle at the target location), the data of the BPMs and harps were carefully analyzed, as well as reconstructing the beam position and angle event by event at the target location. The calculated beam position will be used in the data analysis to accurately determine the kinematics for each event.

The strong interaction is not well understood at low energy, or for interactions with low momentum transfer Q 2 , but one of the clearest insights we have comes from Chiral Perturbation Theory (χPT). This effective treatment gives testable predictions for the nucleonic generalized polarizabilitiesfundamental quantities describing the nucleon's response to an external field. We have measured the proton's generalized spin polarizabilities in the region where χPT is expected to be valid. Our results include the first ever data for the transverse-longitudinal spin polarizability δLT , and also extend the coverage of the polarizability d2 to very low Q 2 for the first time. These results were extracted from moments of the structure function g2, a quantity which characterizes the internal spin structure of the proton. Our experiment ran at Jefferson Lab using a polarized electron beam and a polarized solid ammonia (NH3) target. The δLT polarizability has remained a challenging quantity for χPT to reproduce, despite its reduced sensitivity to higher resonance contributions; recent competing calculations still disagree with each other and also diverge from the measured neutron data at very low Q 2 . Our proton results provide discriminating power between existing calculations, and will help provide a better understanding of this strong QCD regime.

BackgroundCcompared with HbA1c<7% ,T2DM patients with HbA1c≥7% had significantly higher levels of lipid profile, however, it is unknown whether there was a linear and significant increase levels of lipid profile associated with HbA1c value of ≥7%. This study identified the lipid profile across a full range of poor glycemic control and the association between lipid profiles with different specific HbA1c cutoffs.MethodsA total of 1183 type 2 diabetes patients with poor glycemic control (HbA1c>7%) selected through convenience sampling in three hospitals of Jiangsu province were surveyed. Dyslipidemia was defined according to criteria of the Third Report of the National Cholesterol Education Program Adult Treatment Panel III (NCEP ATP III). ResultsThe prevalence of dyslipidemia was 55.2 % overall. Of 1183 subjects, 13.0% had high TC, 33.1% had low HDL-C, 9.9% had high LDL-C, and 28.4% had high TG concentrations. There was an increase in frequency of dyslipidemia in patients with different cutoff values of HbA1c (P<0.05).The prevalence of high TC was closely related with different cutoff values of HbA1c (adjusted OR =1.77, 2.56 3.82, respectively). Patients with HbA1c values 9%≤HbA1c<11% and HbA1c≥13% had significantly higher prevalence of dyslipidemia compared with the patients who had 7≤HbA1c<9%.ConclusionDiabetic patients with 9%≤HbA1c<11% and HbA1c≥13% tend to have moderate and severe dyslipidemia respectively and suggest the importance of glycemic control in normalizing dyslipidemia.

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