Observations of the Interaction and Transport of Fine Mode Aerosols with Cloud and/or Fog in Northeast Asia from Aerosol Robotic Network (AERONET) and Satellite Remote Sensing.

Analysis of sun photometer measured and satellite retrieved aerosol optical depth (AOD) data has shown that major aerosol pollution events with very high fine mode AOD (>1.0 in mid-visible) in the China/Korea/Japan region are often observed to be associated with significant cloud cover. This makes remote sensing of these events difficult even for high temporal resolution sun photometer measurements. Possible physical mechanisms for these events that have high AOD include a combination of aerosol humidification, cloud processing, and meteorological co-variation with atmospheric stability and convergence. The new development of Aerosol Robotic network (AERONET) Version 3 Level 2 AOD with improved cloud screening algorithms now allow for unprecedented ability to monitor these extreme fine mode pollution events. Further, the Spectral Deconvolution Algorithm (SDA) applied to Level 1 data (L1; no cloud screening) provides an even more comprehensive assessment of fine mode AOD than L2 in current and previous data versions. Studying the 2012 winter-summer period, comparisons of AERONET L1 SDA daily average fine mode AOD data showed that Moderate Resolution Imaging Spectroradiometer (MODIS) satellite remote sensing of AOD often did not retrieve and/or identify some of the highest fine mode AOD events in this region. Also, compared to models that include data assimilation of satellite retrieved AOD, the L1 SDA fine mode AOD was significantly higher in magnitude, particularly for the highest AOD events that were often associated with significant cloudiness.

Intranuclear network of 3-5 nm and 8-10 nm fibers in EL-4 lymphoma cells.

While much evidence indicates a high degree of spatial organization in the nucleus, the underlying molecular structures that support it remain poorly characterized. By extracting with high concentrations of RNase A in a modification of the sequential extraction protocol of Penman, we have identified a novel intranuclear network in the mouse lymphoma cell line, EL-4. Micrographs of embedment-free sections of extracted cells reveal anastomosing filaments of two different diameters: 3-5 nm and 8-10 nm. The 3-5-nm filaments are interconnected in many junctions and appear to blend smoothly into each other. The 8-10-nm fibers frequently split into two 3-5-nm filaments. Some 3-5-nm fibers appear to be connected at 90 degrees angles with the 8-10-nm fibers. All junctions are smooth with no apparent junction protein. Flow cytometric analysis of RNase A- (and DNase I-) extracted nuclear matrices indicates that they do not contain significant amounts of protein that react with anti-actin and anti-vimentin monoclonal antibodies. Extraction of EL-4 nuclear matrices with high salt does not reveal 8-10-nm core filaments described after similar treatment of tumor cell lines of cervical and mammary origin. The novel characteristics of the core filaments in EL-4 lymphoma cells may reflect cell-type specificity of the nuclear matrix.

[A gastric multiple neuroendocrine tumor. A case report]. / Tumor neuroendócrino múltiple gástrico. Presentación de un caso.

A 24-year-old woman underwent an upper digestive hemorrhage. Endoscopy revealed a triple, elevated, submucosal lesion. One of them was ulcerated. A Billroth type I gastrectomy was performed. Post-operative course was uneventful and the patient remained asymptomatic for eighteen month. Histology revealed a monomorphous cellular proliferation, with a rosette-like pattern in some areas and trabecular in others. Histochemical methods confirmed the diagnosis. This one is an infrequent lesion; 0.02% of all gastric tumors. Some research studies have related this kind of tumors with prolonged ingestion of H2 inhibitors and others antacid. These tumors stem from Kultschitzky cells coming from the neuroectoderm. They are scarce in stomach; thus these tumors become infrequent. Effective treatment is endoscopy removal of pedunculated lesions or surgery for the bigger ones.

Tumor neuroendócrino múltiple gástrico. Presentación de un caso. / [A gastric multiple neuroendocrine tumor. A case report]

A 24-year-old woman underwent an upper digestive hemorrhage. Endoscopy revealed a triple, elevated, submucosal lesion. One of them was ulcerated. A Billroth type I gastrectomy was performed. Post-operative course was uneventful and the patient remained asymptomatic for eighteen month. Histology revealed a monomorphous cellular proliferation, with a rosette-like pattern in some areas and trabecular in others. Histochemical methods confirmed the diagnosis. This one is an infrequent lesion; 0.02

of all gastric tumors. Some research studies have related this kind of tumors with prolonged ingestion of H2 inhibitors and others antacid. These tumors stem from Kultschitzky cells coming from the neuroectoderm. They are scarce in stomach; thus these tumors become infrequent. Effective treatment is endoscopy removal of pedunculated lesions or surgery for the bigger ones.

Tumor neuroendócrino múltiple gástrico. Presentación de un caso. / [A gastric multiple neuroendocrine tumor. A case report]

A 24-year-old woman underwent an upper digestive hemorrhage. Endoscopy revealed a triple, elevated, submucosal lesion. One of them was ulcerated. A Billroth type I gastrectomy was performed. Post-operative course was uneventful and the patient remained asymptomatic for eighteen month. Histology revealed a monomorphous cellular proliferation, with a rosette-like pattern in some areas and trabecular in others. Histochemical methods confirmed the diagnosis. This one is an infrequent lesion; 0.02

of all gastric tumors. Some research studies have related this kind of tumors with prolonged ingestion of H2 inhibitors and others antacid. These tumors stem from Kultschitzky cells coming from the neuroectoderm. They are scarce in stomach; thus these tumors become infrequent. Effective treatment is endoscopy removal of pedunculated lesions or surgery for the bigger ones.