<strong>Background:</strong> Computed tomography (CT) Scan is the imaging of choice for the diagnosis of sino nasal (SN) pathologies in sub-Saharan African setting. However, it is often requested by non ex...<strong>Background:</strong> Computed tomography (CT) Scan is the imaging of choice for the diagnosis of sino nasal (SN) pathologies in sub-Saharan African setting. However, it is often requested by non experienced practitioners. We aimed to describe the utility and the appropriateness of CT Scan request forms and results in the diagnosis of SN pathologies. <strong>Method:</strong> We conducted a retrospective cross-sectional study in four health facilities in Yaoundé, Cameroun, from October 2018 to September 2019. All patients to whom SN CT Scan was performed were called for an appointment. After informed consent, data on the appropriateness and conformity of the request form were collected and compared to the guidelines of the French society of radiology. CT Scan results were also collected and the quality of the report was evaluated. <strong>Results:</strong> A total of 206 SN CT Scan request forms and reports were included, with a mean patient age of 37.7 ± 16.1 years. The request form was conformed to guidelines in 8.3% of cases and was found appropriate in 62.6% of cases. No CT Scan report had all the items required, and 159 (77.2%) reports were useful. The most common diagnosis in patients with abnormal results was chronic sinusitis (49.5%) and SN polyp or polyposis (19.4%). <strong>Conclusion:</strong> Most of SN CT Scan requested were appropriate and useful. However, the conformity of request forms and reports to the guidelines is low. Suggesting the need for capacity building for the diagnosis of SN pathologies especially for non specialists like general practitioners and nurses.展开更多
To improve the reusable and configurable ability of computer numerical control ( CNC ) software, a new method to construct reusable model of CNC software with object-oriented (OO) technology is proposed. Based on anal...To improve the reusable and configurable ability of computer numerical control ( CNC ) software, a new method to construct reusable model of CNC software with object-oriented (OO) technology is proposed. Based on analyzing function of CNC software, the article presents how to construct a general class library of CNC software with OO technology. Most function modules of CNC software can he reused because of inheritable capability of classes. Besides, the article analyzes the object relational model in request/report mode, and multitask concurrent management model, which can he applied on double-CPU hardware platform and Windows 95/NT environment. Finally, the method has been successfully applied on a turning CNC system and a milling CNC system, and some function modules have been reused.展开更多
GENERAL INFORMATION World Journal of Gastroenterology(WJG,World J Gastroenterol ISSN 1007-9327 CN 14-1219/R) is a weekly journal of more than 48 000 circulation, published on the 7th, 14th, 21st and 28th of every mont...GENERAL INFORMATION World Journal of Gastroenterology(WJG,World J Gastroenterol ISSN 1007-9327 CN 14-1219/R) is a weekly journal of more than 48 000 circulation, published on the 7th, 14th, 21st and 28th of every month. Original Research, Clinical Trials, Reviews, Comments, and Case Reports in esophageal cancer, gastric cancer, colon cancer, liver cancer, viral liver diseases, etc., from all over the world are welcome on the condition that they have not been published previously and have not been submitted simultaneously elsewhere.展开更多
考察了兼顾形式(focus on form,FonF)的导引手段如何影响青少年英语初学者对请求策略的习得。极端显性的FonF操作为显性教学,除了输入输出活动外,还提供元语用知识;隐性的FonF除了输入输出活动外,还对输入进行视觉强化;极端隐性的FonF...考察了兼顾形式(focus on form,FonF)的导引手段如何影响青少年英语初学者对请求策略的习得。极端显性的FonF操作为显性教学,除了输入输出活动外,还提供元语用知识;隐性的FonF除了输入输出活动外,还对输入进行视觉强化;极端隐性的FonF只提供输入输出活动。学习者参加了一次前测和两次后测。结果显示,对总体策略使用来说,不同的FonF同样有效;但对策略分布来说,隐性的FonF无效。从长期效果看,只有极端隐性的FonF在总体策略使用和策略分布两方面都有效。这表明,虽然注意有利于二语习得,但注意所诱发的认知机制受形式特征和学习者特征的影响,在青少年初学者中,并不是越外显的导引手段就越有效。展开更多
文摘<strong>Background:</strong> Computed tomography (CT) Scan is the imaging of choice for the diagnosis of sino nasal (SN) pathologies in sub-Saharan African setting. However, it is often requested by non experienced practitioners. We aimed to describe the utility and the appropriateness of CT Scan request forms and results in the diagnosis of SN pathologies. <strong>Method:</strong> We conducted a retrospective cross-sectional study in four health facilities in Yaoundé, Cameroun, from October 2018 to September 2019. All patients to whom SN CT Scan was performed were called for an appointment. After informed consent, data on the appropriateness and conformity of the request form were collected and compared to the guidelines of the French society of radiology. CT Scan results were also collected and the quality of the report was evaluated. <strong>Results:</strong> A total of 206 SN CT Scan request forms and reports were included, with a mean patient age of 37.7 ± 16.1 years. The request form was conformed to guidelines in 8.3% of cases and was found appropriate in 62.6% of cases. No CT Scan report had all the items required, and 159 (77.2%) reports were useful. The most common diagnosis in patients with abnormal results was chronic sinusitis (49.5%) and SN polyp or polyposis (19.4%). <strong>Conclusion:</strong> Most of SN CT Scan requested were appropriate and useful. However, the conformity of request forms and reports to the guidelines is low. Suggesting the need for capacity building for the diagnosis of SN pathologies especially for non specialists like general practitioners and nurses.
基金Supported by Science and Technology Development Foundation of Shanghai Science and Technology Committee(995107017)
文摘To improve the reusable and configurable ability of computer numerical control ( CNC ) software, a new method to construct reusable model of CNC software with object-oriented (OO) technology is proposed. Based on analyzing function of CNC software, the article presents how to construct a general class library of CNC software with OO technology. Most function modules of CNC software can he reused because of inheritable capability of classes. Besides, the article analyzes the object relational model in request/report mode, and multitask concurrent management model, which can he applied on double-CPU hardware platform and Windows 95/NT environment. Finally, the method has been successfully applied on a turning CNC system and a milling CNC system, and some function modules have been reused.
文摘GENERAL INFORMATION World Journal of Gastroenterology(WJG,World J Gastroenterol ISSN 1007-9327 CN 14-1219/R) is a weekly journal of more than 48 000 circulation, published on the 7th, 14th, 21st and 28th of every month. Original Research, Clinical Trials, Reviews, Comments, and Case Reports in esophageal cancer, gastric cancer, colon cancer, liver cancer, viral liver diseases, etc., from all over the world are welcome on the condition that they have not been published previously and have not been submitted simultaneously elsewhere.
文摘考察了兼顾形式(focus on form,FonF)的导引手段如何影响青少年英语初学者对请求策略的习得。极端显性的FonF操作为显性教学,除了输入输出活动外,还提供元语用知识;隐性的FonF除了输入输出活动外,还对输入进行视觉强化;极端隐性的FonF只提供输入输出活动。学习者参加了一次前测和两次后测。结果显示,对总体策略使用来说,不同的FonF同样有效;但对策略分布来说,隐性的FonF无效。从长期效果看,只有极端隐性的FonF在总体策略使用和策略分布两方面都有效。这表明,虽然注意有利于二语习得,但注意所诱发的认知机制受形式特征和学习者特征的影响,在青少年初学者中,并不是越外显的导引手段就越有效。
