Correlations in hypernuclear matter

We investigate short range correlations in nuclear and hypernuclear matter. Self-energies due to short range correlations and their influence on the nucleon and $\Lambda$-hyperon spectral functions are described in an approach accounting for a realistic treatment of mean-field dynamics and a self-consistently derived quasi-particle interaction. Landau-Migdal theory is used to derived the short range interaction from a phenomenological Skyrme energy density functional, subtracting the long range pionic contributions to the nucleonic spectral functions. We discuss our results for different hyperon-baryon ratios to show the influence of strangeness on the correlations in hypernuclear matter.Comment: 7 pages, 5 figures, proceedings for HYP06 in Main

Extended resection for appendicitis

Background : Appendectomy can be challenging and occasionally converted to extensive resection for complicated appendicitis. However, optimal treatment strategies can be developed using preoperative risk assessment. Thus, we aimed to investigate the preoperative predictors of extensive resection in complicated appendicitis patients undergoing surgery. Materials and methods : In total, 173 complicated appendicitis patients undergoing surgery between 2014 and 2019 were classified into the appendectomy (n = 153) or extensive resection (n = 20) groups. Clinicopathological factors and surgical outcomes were compared between groups. Results : Extensive resection was performed in 20 of 173 complicated appendicitis patients (11.5%). The rates of having defects in the wall structure at the appendix root on computed tomography images were significantly higher, and the duration from onset to surgery was significantly longer in the extensive resection group. Significant differences were found in operative duration, blood loss and postoperative hospitalization, but none in the incidence of postoperative complications between groups. Multivariate analyses showed that defects in the wall structure at the appendix root and five days or longer from onset were identified as independent predictors of extensive resection. Conclusions : Defects in the wall structure at the appendix root and five days or longer from onset predict extensive resection performance in complicated appendicitis patients

Benefits and technological challenges in the implementation of TiO2-based ultraviolet photocatalytic oxidation (UVPCO) air cleaners

Heating, ventilating, and cooling classrooms in California consume substantial electrical energy. Indoor air quality (IAQ) in classrooms affects student health and performance. In addition to airborne pollutants that are emitted directly by indoor sources and those generated outdoors, secondary pollutants can be formed indoors by chemical reaction of ozone with other chemicals and materials. Filters are used in nearly all classroom heating, ventilation and air-conditioning (HVAC) systems to maintain energy-efficient HVAC performance and improve indoor air quality; however, recent evidence indicates that ozone reactions with filters may, in fact, be a source of secondary pollutants. This project quantitatively evaluated ozone deposition in HVAC filters and byproduct formation, and provided a preliminary assessment of the extent to which filter systems are degrading indoor air quality. The preliminary information obtained will contribute to the design of subsequent research efforts and the identification of energy efficient solutions that improve indoor air quality in classrooms and the health and performance of students

Multimodality imaging of biatrial myxomas in an asymptomatic patient

AbstractMyxomas are located in the left atrium in 75–80% of cases and almost always present with signs and symptoms of a thromboembolic event. Biatrial myxomas are rare, and their incidence is generally less than 2.5% of all myxomas. We herein present a case of biatrial myxomas as an incidental finding by echocardiography where the patient underwent surgery. Echocardiography continues to be the initial imaging modality for intracardiac masses. Cardiac magnetic resonance provides superior tissue characterization, particularly important in differentiating a myxoma from a thrombus. Appropriate use of these non-invasive imaging modalities may lead to a correct diagnosis and good outcome.<Learning objective: In this report we present a rare case of cardiac biatrial myxomas. Multimodality imaging, especially delayed enhancement cardiac magnetic resonance imaging, provided specific findings for the diagnosis.

A particle-hole model approach for hypernuclei

A particle-hole model is developed to describe the excitation spectrum of single lambda hypernuclei and the possible presence of collective effects is explored by making a comparison with the mean-field calculations. Results for the spectra of 12C, 16O, 40Ca, 90Zr and 208Pb single lambda hypernuclei are shown. The comparison with the available experimental data is satisfactory. We find that collective phenomena are much less important in hypernuclei than in ordinary nuclei.Comment: 24 pages, 5 eps figures, accepted for publication in Nucl. Phys.

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A ６５-year-old man with bleeding on defecation was referred to our hospital. Screening colonoscopy revealed a type２rectal cancer（tub１）in Rb. Furthermore, CT scan revealed a２cm in diameter tumor in the tail of the pancreas. Laboratory test showed no increase of tumor markers. PET-CT revealed rectal wall thickness and lymph node swelling（＃２５１）with increased FDG uptake, but no FDG uptake by pancreas tumor. Dynamic MRI revealed no enhancement of cystic tumor of the pancreas. We performed laparoscopic super low anterior resection, D３（bilateral lymph node dissection）and hand-assisted laparoscopic distal pancreatectomy at the same time. Pathological findings demonstrated rectal cancer with lymph node metastasis and an epidermoid cyst derived from an intrapancreatic accessory spleen. Laparoscopic surgery for distant more than one tumor was a feasible and less invasive treatment

Chemotherapy on QOL and night sleep of CC patients

Background : The aim of this study was to investigate quality of life (QOL) and night-time sleep disturbance in colon cancer patients with middle risk chemotherapy for proper antiemetic therapy. Methods : The study enrolled 139 patients with colorectal cancer. All patients received oxaliplatin or irinotecan-based chemotherapy. Patients completed a questionnaire about chemotherapy-induced nausea and vomiting and sleep disturbance. Sleep disturbance was checked, and the relationship between sleep disturbance and nausea was analyzed. Results : The prevalence of nausea was 48.9% (68 / 139). The degree of the nausea was slight / moderate / severe in 51 / 11 / 6 patients, and 12 patients had vomiting. Appetite showed no change / slightly decreased / half / one-fourth / none in 51 / 34 / 33 / 6 / 7 patients. There were significant differences in the mental component summary (MCS) score and the role-social component score (RCS). (MCS : nausea(+) vs nausea(-) 46.4 ± 1.1 vs 54.1 ± 1.1 p < 0.01 RCS : nausea(+) vs nausea(-) 33.1 ± 2.1 vs 41.6 ± 2.1 p < 0.01). Using the MCS with a cut-off score of 50, patients were divided into two groups, and nausea was significantly correlated with a low MCS score. Furthermore, patients were divided into two groups using a Pittsburgh Sleep Quality Index cut-off score of 6, and sleep disturbance was correlated with old age and second-line chemotherapy. Conclusions : Nausea affects QOL and night-time sleep of colon cancer patients with middle risk chemotherapy

Strangeness nuclear physics - 2010

Selected topics in Strangeness Nuclear Physics are reviewed: Lambda hypernuclear spectroscopy and structure, multistrangeness, and Kbar mesons in nucleiComment: Proceedings version of an Overview talk at New Frontiers in QCD 2010 (NFQCD10) - Exotic Hadron Systems and Dense Matter - Yukawa Institute, Kyoto, Feb. 2010; v2 updates Table II for double-Lambda hypernuclei and its discussion beyond the published journal versio