Rod-Shaped Hemoglobin Crystals: Clues to the Diagnosis of Hemoglobin C Disease.

The typical rod-shaped HbC crystals in the peripheral blood smear often provide the diagnostic clue to the HbC disease. This case highlights that a careful review of blood film morphology may be helpful to detect HbC disease, although this case's routine blood test is normal and do not meet the rules of re-examinations.

Study on Fracture Characteristics of Layered Sandstone under Asymmetric Loading.

In engineering practice, layered rock masses often display obvious anisotropy while deforming and failing, and the failure mode directly impacts the engineering construction stability. In this study, the fracture failure load, fracture toughness, crack deflection angle, and failure mode of a layered rock mass under different fracture modes were analyzed by utilizing improved asymmetric semi-circular disc specimens. According to the constitutive model of transversely isotropic materials, the maximum tensile stress (MTS), maximum energy release rate (MERR), and maximum strain energy density (MSED) calculation formulas were modified, and the calculation formulas of the three prediction criteria under anisotropic materials were derived. The calculation results were compared with the experimental results. The results show that the fracture toughness and crack deflection angle were significantly affected by the weak bedding plane. As a result of applying the MTS criterion, the results are closer to the experimental results, providing a solid foundation for engineering deformation, failure, and fracture analyses.

An unexpected finding between the EBV and splenic rupture.

EBV is a gammaherpesvirus that infects a large fraction of the human population. Many people infected with the virus remain asymptomatic. The most common clinical manifestation of EBV is linked to infectious mononucleosis (IM). IM usually resolves over a period of weeks or months without sequelae. However, splenic rupture is another rare complication of IM. Splenic rupture of this case occur without any traumatic cause.

3-D shape reconstruction of non-uniform reflectance surface based on pixel intensity, pixel color and camera exposure time adaptive adjustment.

High dynamic range 3-D shape measurement is a challenge. In this work, we propose a novel method to solve the 3-D shape reconstruction of high-reflection and colored surfaces. First, we propose a method to establish a fast pixel-level mapping between the projected image and the captured image. Secondly, we propose a color texture extraction method using a black-and-white (B/W) camera and a pixel-level projection color adjustment method. Third, we give an optimal projection fringe modulation/background intensity ratio. Fourth, we propose a method for estimating the reflectivity of the object surface and ambient light interference, and a method for adjusting the projection intensity at the pixel level and a method for estimating the optimal exposure time. Experiments show that, compared with the existing methods, the proposed method not only can obtain high-quality captured images, but also has higher measurement efficiency and wider application range.

Rapid 3D measurement technique for colorful objects employing RGB color light projection.

Three-dimensional (3D) measurement of colorful objects is challenging. As different colors can absorb different wavelengths of projected light, the brightness and contrast of the captured fringe are not uniform when employing single-color light projection, which will lead to measurement error. In this paper, we present a rapid 3D measurement technique for colorful objects employing red, green, and blue (RGB) light projection. According to the research in this paper, for common colors, the pixel with the largest brightness and contrast can be extracted from the three fringes projected by RGB light. Furthermore, we introduce the selection method of exposure time, and then combine the high-speed projection technique with the optimal pixel-extraction algorithm to get the optimal set of fringes for phase calculation. Experiments show that the proposed method improves the measurement accuracy and efficiency.

[Changes of T Lymphocyte Subsets and Immunoglobulin in Peripheral Blood of Patients with ALL and N-ALL before and after Treatment and their Value for Monitoring of Disease and Evaluation of Prognosis].

OBJECTIVE: To study the changes of T lymphocyte subsets and immunoglobulin in peripheral blood of patients with acute lymphoblastic leukemia (ALL) and non-acute lymphocytic leukemia (N-ALL) before and after treatment and their value for monitoring of disease and evaluation of prognosis. METHODS: One hundred and six cases of leukemia were selected in our hospital, including 48 cases of ALL (ALL group) and 58 cases of N-ALL (N-ALL group); 54 peoples of normal physical examination were selected as the normal control group in the same period. The IgA, IgG and IgM levels of peripheral blood were detected, and the absolute value of T lymphocyte subsets was determined by cell slide method. According to whether the patients' status was improved or not by treatment, the 106 patients were divided into the unimproved group (55 cases including 25 ALL, 30 N-ALL) and improved group (51 cases including 23 ALL, 28 N-ALL). RESULTS: The levels of IgA, IgG and IgM in 106 cases of leukemia were significantly lower than those in the control group (all P<0.05), and the CD3+ level, CD3+CD4+/CD3+CD8+ ratio and the absolute value of CD3+CD4+T cells in the peripheral blood were significantly lower than those in the control group(all P<0.05); the absolute value of CD3+CD8+T cells showed no significant difference in comparison with the control group (P >0.05). After treatment, IgA,IgG and IgM levels in the improved group were significantly higher than those before therapy (all P<0.05), while their levels were not significantly different from that in the control group (all P>0.05); the CD3+ level, CD3+CD4+/CD3+CD8+ ratio and the absolute value of CD3+CD4+T cells in the peripheral blood were significantly higher than those before therapy (all P<0.05), while those were not significantly different from the control group (all P>0.05). Compared with levels before treatment, the levels of above mentioned indicators in the unimproved group after treatment were not significantly different (all P>0.05); and the CD3+ level, CD3+CD4+/CD3+CD8+ ratio and the absolute value of CD3+CD4+T cells were significantly lower than those in the control group (all P<0.05), and the absolute value of CD3+CD8+T cells were higher than that in the control group (P<0.05). CONCLUSION: After the treatment, the T lymphocyte subsets (CD3+, CD3+CD4+T cells) and immunoglobulin (IgA, IgG, IgM) levels in peripheral blood of patients with ALL and N-ALL have been improved significantly, and the detection of these indexes is helpful for disease monitoring and prognosis evaluation.