ABSTRACT
Objective To compile the basic disyllable vocabulary lists of the Hakka dialect speech in the Huizhou region,and basic materials for speech evaluation,according to requirement of speech audiometry and Hakka dialect phonology.Methods Based on the distribution of deaf patients and subareas of Hakka dialect in Guang dong Province,the Meihui dialect was selected as the major target.Meanwhile,several relevant pieces of literature,dictionaries and local chronicles were also studied as the reference in the process.Results A set of disyllable vocabulary,consisting of 5 lists,were compiled.Each list was made up of 40 words,and divided according to the principle of balance,high frequency and universality.The words in the lists were frequently used by local citizens(retelling rate＞91％).An analysis showed that there were strong correlations between each other.However,they were not equivalent,and could not be replaced by each other.Conclusion The compiled vocabulary lists are primarily verified to be suitable for Hakka citizen in the Huizhou region.Further adjustments,revision and research on their equivalence are also required.
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Objective To discuss the postoperative complications of hypertensive intracerebral hemorrhage treated with freehand drilling skull minimally invasive puncture drainage therapy .Methods The clinical data of 158 patients with hypertensive intracerebral hemorrhage were retrospectively analyzed .The incidence rate ,causes and preventative measures of the postoperative complications of hypertensive intracerebral hemorrhage treated with free -hand drilling skull minimally invasive puncture drainage therapy were analyzed .Results 10 cases of scalp bleeding , 4 cases of epidural hemorrhage , 9 cases of puncture pathway bleeding , 24 cases of secondary bleeding , 1 case of intracranial infection,3 cases of low intracranial pressure ,5 cases of pneumoencephalos and 2 cases died.Conclusion Freehand drilling skull minimally invasive puncture drainage leads to less complications and so far it is a safe and effective therapy for hypertensive intracerebral hemorrhage .
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At present, navigation path deviation caused by brain shift is the main factor that affects the accuracy of neurosurgical navigation. A new method of near infrared spectroscopy (NIRS) based neurosurgical navigation is presented in the paper. The correlation between NIRS optical parameters and medical image is used and the gray information of navigation path is regarded as the priori knowledge, sample-points curvatures are calculated by Hermite interpolation and the Mean Hausdorff distance as measurement criterion is used to match feature segments, then the real-time correction model is established. The algorithm of the given model is simple and can realize the best match within the error, it provides an effective method for real-time navigation path correction.
Subject(s)
Humans , Algorithms , Artificial Intelligence , Calibration , Image Interpretation, Computer-Assisted , Methods , Neuronavigation , Methods , Spectroscopy, Near-Infrared , Methods , Surgery, Computer-Assisted , MethodsABSTRACT
Objective To incubate the rat neural stem cells with specific inhibitor (PD98059) of MAPKK/MEK to clarify the effect of MAPKK/MEK-MAPK/ERK signaling pathway in neural stem cells (NSC).Methods NSCs derived fiom E15-16 rats were isolated and cultured.After treated with different concentration of PD98059,they were subjected to the detection of cell proliferation,Nesn'n, BrdU and β-tubulin-Ⅲ by WTS-8 assay,immunofluorescent staining or Western Blot respectively.Results PD98059 had an effect on the survival,proliferation and differentiation of NSC at a concentration-dependent manner.The viability of the NSC was significantly decreased than the control (P＜0.05),whereas the numbers of BrdU-positive and β-tubulin-Ⅲ positive cells were notably fewer than the control (P＜0.05) after incubated with the higher concentration of PD98059.The ERK expression was blocked by PD98059 at a concentration-dependent manner.Conclusion The MAPKK/MEK-MAPK/ERK signaling pathway played a vital role in the survival, proliferation and differentiation of NSC.