head

摘要： Objective:To investigate the effect of Gubi Tongxiao granules on vascular formation and cell apoptosis in the process of glucocorticoid-induced femoral head necrosis.Methods:Thirty experimental New Zealand rabbits were randomly divided into groups.Except the control group,the animal model of steroid-induced femoral head necrosis was established by lipopolysaccharide combined with glucocorticoids.After successful modeling,the experimental group was given Gubi Tongxiao granules intragastric treatment,the model and control group were given the same amount of normal saline intragastric treatment,once a day,for 8 weeks,the experimental animals were sacrificed,the bilateral femoral head of each group was taken out for hematoxylin-eosin staining,and protein CD34,CYR61 and VEGF were immunohistochemical staining localization.TUNEL staining was used to observe the apoptosis of femoral head cells.The expression levels of apoptosis proteins Bax and Bcl-2 were detected by WB.The expression of VEGF eNOs Bax and Bcl-2 genes was analyzed by RT-qPCR.Results:Gubi Tongxiao granules reduced the number of hollow bone lacunae and apoptotic positive cells(P<0.01),and up-regulated the expressions of CD34,CYR61 and VEGF in femoral head tissue.Compared with control group,the expression of pro-apoptotic protein Bax increased and the expression of anti-apoptotic protein Bcl-2,VEGF and eNOs mRAN decreased significantly in the model group(P<0.01),the opposite results were obtained in the experimental group after Gubi Tongxiao granule intervention(P<0.05).Conclusion:Gubi Tongxiao granules can improve the expression of angiogenic genes and regulate apoptosis-related proteins in the bone tissue of rabbit model with steroid-induced necrosis of femoral head,promote angiogenic differentiation and inhibit apoptosis,and thus achieve the effect of treating steroid-induced necrosis of femoral head.

摘要： Consumption of seafood has increased globally over the past 50 years, from an average of 9.9 kg per capital in the 1960s to over 20 kg in 2016. In Nigeria, African catfish (Clarias gariepinus) has gained more attention in terms of farming and consumption compared to other seafood. This project was carried out to determine the level of amino acid composition in the head, muscle and tail of catfish so as to enlighten the public about their choice on the part of catfish to be eaten. Eight different sets of fresh catfish with a mean ± standard deviation of 15.6 kg ± 1.89, which were collected from a local fish pound in Ado-Ekiti, Nigeria, were used for the analysis. Extraction and evaluation of the amino acid composition were carried out using standard analytical techniques. The results obtained showed that high values of amino acids were observed in the fresh catfish (g/100g protein): 13.27 - 13.87 (Glu), 8.76 - 10.39 (Asp), 7.20 - 9.15 (Leu), 7.00 - 8.26 (Lys) and a low value in (Cys), 1.27 - 1.38. The total amino acids had a range of 89.16 - 92.12 g/100g. The coefficient of variation percent (CV %) for all the parameters determined were all generally low with values of 0.74 (observed for Ser) and 39.41 (observed for Pro). Total essential amino acid with histidine values ranged from 38.64 - 42.91 g/100g (CV % = 5.66). It was also observed that the concentrations (g/100g) of amino acids in the muscle of fresh catfish (92.12) are higher than that of the tail (91.98) and that of the head (89.16). There is no appreciable variation in the amino composition of the head, muscle and tail of catfish as the values observed were found to be statistically insignificant (p > 0.05). Therefore, it could be posited that the amino acid in the muscle, tail and head of African catfish would therefore be enough to prevent malnutrition in children and in adults who feed solely on any part of this fish as a main source of protein.

摘要： BACKGROUND Talar fractures are exceedingly rare in childhood.There are very few studies on the clinical aspects,the long-term outcomes and the appropriate treatment of these fractures in pediatric patients.The mechanism of trauma consists of the application of a sudden dorsiflexion force on a fully plantar-flexed foot.Traumatic mechanism,symptoms and imaging of injuries of the talar head are similar to transitional fractures that are normally described at the distal epiphysis of the tibia:the so-called transitional fracture is defined as an epiphyseal injury when the growth plate has already started to close.CASE SUMMARY A thirteen-year-old girl reported a high-energy trauma to her right foot,due to falling from her horse.X-rays at the Emergency Department were negative.Because of persistent pain,the patient was assessed by an orthopedic surgeon after two weeks and computed tomography scans revealed a misdiagnosed displaced shear-type fracture of the talar head.Hence,surgical open reduction and fixation with two headless screws was performed.The girl was assessed regularly,and plain films at follow-up revealed complete healing of the fracture.Within six months after surgery,the patient returned to pre-injury sport activities reporting no complications.CONCLUSION Injuries of the talar head in childhood should be considered as transitional fractures.Open reduction with internal fixation aims to reduce malalignment and osteoarthritis.Computed tomography scans are recommended in these cases.

摘要： 下列习语和表达中会使用到名词"head",每个习语或表达后都有一个定义和两个例句,来帮助你理解这些常用的含有"head"的习语表达。

摘要： Methyltransferase like 13(METTL13),a kind of methyltransferase,is implicated in protein binding and synthesis.The upregulation of METTL13 has been reported in a variety of tumors.However,little was known about its potential function in head and neck squamous cell carcinoma(HNSCC)so far.In this study,we found that METTL13 was significantly upregulated in HNSCC at both mRNA and protein level.Increased METTL13 was negatively associated with clinical prognosis.And METTL13 markedly affected HNSCC cellular phenotypes in vivo and vitro.Further mechanism study revealed that METTL13 could regulate EMT signaling pathway by mediating enhancing translation efficiency of Snail,the key transcription factor in EMT,hence regulating the progression of EMT.Furthermore,Snail was verified to mediate METTL13-induced HNSCC cell malignant phenotypes.Altogether,our study had revealed the oncogenic role of METTL13 in HNSCC,and provided a potential therapeutic strategy.

摘要： This paper seeks to examine headedness in affixation processes in Urhobo using a feature percolation approach.Affixation is a rich source of word formation process in the Urhobo language.The specific objectives are to identify affixation processes in Urhobo,investigate how they are used to derive words and determine headedness in the Urhobo language using a feature percolation theory as a framework.This paper reveals three affixation processes in Urhobo,which are prefixes,circumfixes and suffixes.Affixation is a derivational aspect of morphology and it brings about change in the grammatical class of the word or rather,provides additional semantic information to a word.The paper discovers that new words are derived in the language by attaching an affix either at the beginning(prefix),or to the end(suffix)of a word.This process is very productive in the language.The paper reveals that the head of a word using prefix is left-right branching while for suffixes,it is right-left branching.The prefix and suffix attached to a root to form the circumfix project to be the head of a word.The study observes circumfixes to have two heads.Feature percolation theory is also used to determine the head of a word in Urhobo.The paper concludes by recommending further researches on the use of theories especially morphological theories in analysing morphological processes in Urhobo.

摘要： Some questions regarding the analysis of classifiers and classifier constructions are raised in this paper.The classifier,as a mere adjunct adjoining to the head,cannot serve as the head of the noun phrase containing it,and as a result,it cannot project as ClP or nP.Under this approach,the DP analysis and the classifier construction theory are further refined.The constituents which precede and follow the classifier are analyzed in terms of their syntactic functions,semantic relations,linear features,feature assignment and syntactic occurrence in order to represent the classifier construction with the X-bar phrase structure theory appropriately and correctly and present a universal approach to classifier constructions in various languages.

摘要： Flatheads are valuable commercial fish species endemic to the Indo-West Pacific.Due to their economic value and unique biological traits,such as metamorphosis and camouflage,they serve as ideal marine organisms for studies on demersal adaptation and evolution.The brown-spotted flathead(Platycephalus sp.1)is the most widely distributed in the northwestern Pacific.Despite the lack of a valid scientific name,it has been long recognized and exploited in the marine fisheries of China,Japan,and Korea.In the current study。

摘要： "头/head"在人体部位中具有举足轻重的地位,在汉英两个民族的长期生活实践中,早已衍生出非常丰富的隐喻义。本文从认知角度出发,在隐喻空间性和非空间性这两个层面来对比"头/head"的认知异同,并提出相应的翻译策略。

摘要： 本发明涉及一种基于Head轻量化Mask Scoring R‑CNN的手势识别方法，在原始Mask Scoring R‑CNN主干网络的输出特征图之后引入一个轻量化的位置敏感得分图和位置敏感RoIAlign，使得Head结构的输入RoI通道数变得很小，并且将Head结构中连续的两个全连接层改为单个全连接层来减少计算量。本发明以DetNet59结合FPN作为主干网络，使得提取的多尺度特征图能够同时包含丰富的语义信息和位置信息并且能够适应各种尺寸的物体进行检测。经本发明改进后的实例分割模型在平均精准度上得到明显提升，模型参数数量得到有效降低，模型的训练和检测速度得到了有效提高。

摘要： 本发明公开了基于Two‑Head异常检测模型的恶意代码样本筛选器及方法，筛选器包括特征提取器、第一分类层、第二分类层、softmax函数模块以及不确定性度量模块。特征提取器包括恶意代码检测模型中的特征提取部分。第一分类层和第二分类层采用恶意代码检测模型中的分类层结构，第一分类层和第二分类层并行连接在特征提取器输出端。第一分类层和第二分类层的输出分别经softmax函数模块输出第一分类概率值和第二分类概率值。第一分类概率值和第二分类概率值输入至一个不确定性度量模块中；不确定性度量模块的输出为分类结果标签。并使用训练好的Two‑Head异常检测模型对待输入至恶意代码检测模型的恶意代码检测样本进行筛选。

摘要： 本发明公开了一种基于私有HEAD的数据镜像方法，包括：用户终端访问互联网；AH模块对访问互联网的上网数据包进行识别，复制满足条件的数据包，在其前部增加私有HEAD进行封装，将封装后得到的数据包发送给审计硬件模块；HOST设备和审计硬件模块均存在自己的固定网络地址；审计硬件模块收到封装后得到的数据包后，AS模块对其进行解封装处理；审计硬件模块对解封装后的数据包进行网络安全审计，丢弃掉无用的数据包，并将有用的数据包转换成符合各地市公安的要求标准的数据，并通过网络上报到指定的审计服务器。本发明对HOST设备的性能消耗较低、对HOST设备的用户体验无影响、降低部署成本、对于中小场所更容易落地实施。

摘要： 本发明提供一种基于Head modify技术的分组封装和传输方法，采用将网络拓扑中的中继节点作为基础实现的Head modify的方法，使得源节点发向不同目的节点的多播数据包可以无状态的进行转发，且在相同转发路径只发送一个数据包负载载荷，从而解决了传统方案相同路径重复转发和有状态导致的数据流量消耗过多的问题。

摘要： 本发明公开了基于Light‑HeadR‑CNN算法的生态生物识别方法，包括如下步骤：收集生态生物特征，将收集的生态特征进行收集分类，并建立分布式生态特征数据库；发起生态生物识别请求，根据请求在生态环境中采集生物图像数据；对采集的生物图像数据进行分析处理，并将分析处理后的生物图像数据进行存储；通过Light‑HeadR‑CNN算法对采集的生物图像数据进行目标检测；将得到的所需识别的生物图像数据与分布式生态特征数据库中的特征数据进行对比识别。本发明通过设置Light‑HeadR‑CNN算法，能够提高目标检测的速度和准确度，有效的提高了生态生物识别的速度和精确度。

摘要： 本发明涉及一种基于Head轻量化Mask Scoring R‑CNN的手势识别方法，在原始Mask Scoring R‑CNN主干网络的输出特征图之后引入一个轻量化的位置敏感得分图和位置敏感RoIAlign，使得Head结构的输入RoI通道数变得很小，并且将Head结构中连续的两个全连接层改为单个全连接层来减少计算量。本发明以DetNet59结合FPN作为主干网络，使得提取的多尺度特征图能够同时包含丰富的语义信息和位置信息并且能够适应各种尺寸的物体进行检测。经本发明改进后的实例分割模型在平均精准度上得到明显提升，模型参数数量得到有效降低，模型的训练和检测速度得到了有效提高。

摘要： 本发明公开了基于Two‑Head异常检测模型的恶意代码样本筛选器及方法，筛选器包括特征提取器、第一分类层、第二分类层、softmax函数模块以及不确定性度量模块。特征提取器包括恶意代码检测模型中的特征提取部分。第一分类层和第二分类层采用恶意代码检测模型中的分类层结构，第一分类层和第二分类层并行连接在特征提取器输出端。第一分类层和第二分类层的输出分别经softmax函数模块输出第一分类概率值和第二分类概率值。第一分类概率值和第二分类概率值输入至一个不确定性度量模块中；不确定性度量模块的输出为分类结果标签。并使用训练好的Two‑Head异常检测模型对待输入至恶意代码检测模型的恶意代码检测样本进行筛选。

摘要： 本发明提供一种基于Head modify技术的分组封装和传输方法，采用将网络拓扑中的中继节点作为基础实现的Head modify的方法，使得源节点发向不同目的节点的多播数据包可以无状态的进行转发，且在相同转发路径只发送一个数据包负载载荷，从而解决了传统方案相同路径重复转发和有状态导致的数据流量消耗过多的问题。

摘要： 本发明公开了一种基于私有HEAD的数据镜像方法，包括：用户终端访问互联网；AH模块对访问互联网的上网数据包进行识别，复制满足条件的数据包，在其前部增加私有HEAD进行封装，将封装后得到的数据包发送给审计硬件模块；HOST设备和审计硬件模块均存在自己的固定网络地址；审计硬件模块收到封装后得到的数据包后，AS模块对其进行解封装处理；审计硬件模块对解封装后的数据包进行网络安全审计，丢弃掉无用的数据包，并将有用的数据包转换成符合各地市公安的要求标准的数据，并通过网络上报到指定的审计服务器。本发明对HOST设备的性能消耗较低、对HOST设备的用户体验无影响、降低部署成本、对于中小场所更容易落地实施。