用MicrosoftSQLServer支持Exchange——微软决定放弃

Exchange团队对SQL服务器用作Exchangen服务器的后端存储进行了测试,但是决定弃之不用,继续使用ESE,避免增加管理问题以及可能的额外许可证成本。     

Adrenal cortical carcinoma with a liver metastasis in a child. Report of a case with fine needle aspiration findings and image analysis of nuclear DNA

BACKGROUND: Adrenal cortical carcinoma is a rare and highly malignant neoplasm. Liver metastases from it may require special differential techniques in addition to cytologic findings. CASE: A 14-month-old child had adrenal cortical carcinoma and a liver metastasis confirmed by fine needle aspiration biopsy (FNAB). Histologic and clinical criteria of malignancy only partially applied to this tumor. Immunohistochemical analysis of both the primary tumor and metastasis supported an adrenal cortical origin. Other ancillary tests-DNA ploidy, proliferation index (proliferating cell nuclear antigen, Ki-67) and p53 protein immunolocalization-were utilized in a diagnostic sequence. Flow cytometric and image analysis of DNA ploidy of the primary tumor gave similar results. Assessment of DNA content of the adrenal cortical carcinoma and liver metastasis by image analysis showed identical patterns. CONCLUSION: The applicability of new diagnostic techniques to FNAB material may provide new objective measures of the biologic potential of adrenal cortical carcinoma. The validity of these tests is enhanced with the use of image-based quantitative approaches that provide greater reproducibility and objectivity of their results.     

Consistent numerical chromosome aberrations in congenital fibrosarcoma

Since its introduction by Schirmer in 1903, the Schirmer test has been widely used for the assessment of the adequacy of tear production. Although the faults of the Schirmer test have been well documented, it is nevertheless still being used to assess tear production, especially in the diagnosis of keratoconjunctivitis sicca (KCS) and for screening potential contact lens wearers. We summarize the findings and conclusions of some of the previous studies.     

Osteomyelitis pubis occurring after spontaneous vaginal delivery: a case presentation

A 30-year-old Palestinian collapsed when under interrogation by the Israeli General Security Service and was declared brain dead 3 days later. Information on the circumstances and interrogation methods was denied on security grounds. Autopsy disclosed extensive anterior chest and shoulder bruising and acute subdural haemorrhage but no other trauma. On this evidence, violent shaking was postulated as the mechanism of injury. Later, this was admitted by Israeli investigators and corroborated by histopathologically proved diffuse axonal injury and retinal haemorrhages. This is the first reported case of fatal shaken adult syndrome.     

LARGE-EDDY SIMULATIONS OF TURBULENCE ON THE CM-2

This paper reports the development and performance of a computer program for large-eddy simulations (LES) of turbulence on a massively parallel computer, the Connection Machine-2 (CM-2). The computer program solves the time-dependent Navier-Stokes equations for large scales of turbulence using a second-order time and space accurate, semi-implicit, finite-difference scheme. The effects of small scales of turbulence are represented by a subgrid closure model. The computer program is written in CM Fortran but uses some of the Connection Machine Scientific Subroutine Library (CMSSL) routines for line inversions and discrete Fourier transforms. Calculations are performed for fully developed channel flow and results are compared with previously published numerical and experimental data. In comparison with a similar calculation on a single-processor Cray-2, a speedup factor of 2.1 has been achieved with a 32 K CM-2. It is observed that the CM-2 provides a promising environment for turbulence simulations. Details of the physical problem, the numerical algorithm, and the performance of the machine are reported.     

GSS participation: A cultural examination

It has been suggested that group support systems (GSS) reduce many meeting participation barriers. GSS impact may interact with culture, thereby affecting GSS efficacy in a given context. However, since the majority of GSS research is based on studies in the United States, implications of this interaction for different cultural settings are not obvious.A research model is developed to help identify effects of cultural settings. Hofstede's cultural dimensions of power distance, individualism–collectivism, and masculinity–femininity are employed as example settings. Parallel and anonymous entry are employed as example GSS functionalities. The research model's usefulness is then illustrated by generating research propositions focusing on interactions of these settings and functionalities. Further examples employing other cultural settings and GSS functionalities are then suggested as evidence that the model is robust as well as useful.