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Piezoelectric Ceramic Controlled with Platinum Implant as new Isolator in ECG

Materials Sciences and Applications 2014年第5期5卷 338-346页

作者： Ernesto Suaste-Gómez Carlos O. González Morán omar terán-jiménez Héctor Reyes-Cruz Electrical Engineering Bioelectronics Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV—IPN) Mexico City Mexico

Recently, a new PLZT bulk single plate, called ceramic-controlled piezoelectric with two Platinum wires (CCP2) has been produced;this CCP2 has two (250 μm of diameter and 1 cm long) Platinum-wire implants. This unconventional isolation device for use with diagnostic ECG devices provides high common mode rejection and low leakage current using piezo isolator based on two Platinum wires implanted Lead Lanthanum Zirconate Titanate bulk ceramic. These isolation was validated using four experimental setups;one of them determine that ceramic-controlled piezoelectric with two Platinum wires (CCP2) support up to 6 kV DC before it cracks (short cut). The second experimental setup determined high resistance about 3.9 × 109 Ω and 1.8 × 109 Ω measured on lateral sides and among Platinum wires of CCP2 respectively. The third experimental setup was to obtain the current leakage from CCP2 and it was 6 nA. The fourth experimental setup was to obtain frequency response that was the maximum up to 2.2 MHz and was a pass band filter. Finally the CCP2 was applied as new isolator in a ECG circuit, where bioelectrical ECG signal is modulating at 16 KHz using the piezoelectric effect obtaining excellent results.

关键词： ECG Piezo Isolators PLZT-Platinum Wire Implanted Ceramics Unconventional Device

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Training of health personnel to improve knowledge and skills in taking Pap: Effect of an educational intervention to prevent cervical cancer

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Health 2013年第7期5卷 60-64页

作者： Gutiérrez-Enríquez Sandra Olimpia Frías-navarro Víctor omar Oros-Ovalle Cuauhtémoc Ortiz-Valdez Julio Alejandro Gaytán-Hernández Darío terán-Figueroa Yolanda Colposcopy Department from Child and Women’s Hospital Health Services from San Luis Potosí San Luis Potosí México Guanajuato University Guanajuato México nursing Faculty San Luis Potosí University San Luis Potosí México Patology Deparment Dr. Ignacio Morones Prieto Central Hospital San Luís Potosí México

Objective: To evaluate the effectiveness of an educational intervention to improve knowledge and skills in taking Pap smear conducted by health staff implementing the program on Early Detection of Cervical Cancer. Methods: A quasiexperimental, longitudinal and prospective study, held from October 25 2010 to April 11, 2011 at a hospital in San Luis Potosi, Mexico. To select groups applied a non-probabilistic convenience sampling that was composed of 28 people, 15 for the study group and 13 to the control group. The study group received training that was divided into three phases in which assessed the knowledge and skills taking the smear, the control group received conventional training offered by your workplace. Papanicolaou quality was measured before and after the intervention. The reference used international classification system Bethesda 2001. For data analysis we used the Student t test. Results: The study group increased knowledge (t = 8.768, p = 0.000) in the management of official standards, in the anatomy of the lower female genital tract and in the form of testing. Technical skills (t = 8.639, p = 0.000) also increased in the study group after the intervention. The control group showed no significant changes. The quality report of the samples in the study group increased from 60% to 86.7% and in the control group decreased from 92.3% to 84.6%. Conclusions: The training is effective in improving the knowledge and skills in taking Pap. Health staff who received the training improved their performance and showed more interest in providing high quality service to women.

关键词： Cervical Cancer Educational Intervention Pap Knowledge and Skills in Taking Pap

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Chylous ascites after pancreatico-duodenectomy

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Hepatobiliary & Pancreatic Diseases International 2007年第4期6卷 416-419页

作者： Mansoor Ahmed Madanur narendra Battula Muhammad omar Azam nigel Heaton Mohamed Rela Institute of Liver Studies Kings College Hospital Denmark HillLondon SE5 9RSUK

BACKGROUnD:Chylous ascites(CA) following pancreatico-duodenectomy(PD) is a rare complication secondary to disruption of the lymphatics during extended retroperitoneal lymph node dissection. The majority of cases do not develop CA,possibly due to patency of the proximal thoracic duct and good collaterals. CA may be due to a consequence of occult obstruction of the proximal thoracic duct by malignant infiltration or tumor embolus. This study was to report the incidence of CA and its outcomes of management. METHODS:A retrospective search of our liver database was performed using the 'pancreatico-duodenectomy','chylous ascites' from January 2000 to December 2005. The medical records of CA patients and their management and outcome were reviewed. RESULTS:In 138 patients who had undergone PD in our centre for pancreatic malignancy,3 were identified with CA and managed by abdominal paracentesis. CA resolved in 2 patients with low fat medium chain triglyceride diet alone and 1 patient had total parenteral nutrition(TPn) for persistent CA. Resolution of CA occurred in these 3 patients at a median follow-up of 4 weeks(range 4-12 weeks). Histologically,resected specimen confirmed pancreatic adenocarcinoma in all the patients. Two patients developed loco-regional recurrences at a median follow up of 8 months(range 6-10 months). And the other was currently disease free at a 10-month follow up. COnCLUSIOnS:CA as an uncommon postoperative complication requires frequent paracentesis,prolonged hospital stay,and delayed adjuvant chemotherapy. CA istreated with low fat medium chain triglyceride diet or occasionally TPn is required.

关键词： pancreatico-duodenectomy chylous ascites delayed adjuvant chemotherapy

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参考ICF分类确定脑卒中临床试验结局测量中的相关概念

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中国康复理论与实践 2008年第12期14卷 1119-1123页

作者： Szilvia GEYH Thomas KURT Thomas BROCKOW Alarcos CIEZA Thomas EWERT Zaliha omar Karl-Ludwig RESCH 陈迪(译) 王朴(译) 邱卓英(审校) 吴弦光(审校) ICF Research Branch WHO FIC Collaborating Cen ter (DIMDI) IMBK Ludwig-Maximilians University Munich Ger many Spa Medicine Research Institute Bad Elster Germany Department of Physical Medicine and Rehabilitation Ludwig Maximili ans University Munich Germany University of Malaya Faculty of Medicine Kuala Lumpur Malaysia. 中国康复研究中心北京市300070 不详

目的使用ICF分类作为参考,系统地确定和量化脑卒中临床试验结局测量中的概念。方法根据预先制定的标准,从MEDLInE数据库中筛选1992～2001年间随机控制实验,提取结局测量,并将结局测量中的概念与ICF建立联系。结果在320个合格研究中,有16... 详细信息

目的使用ICF分类作为参考,系统地确定和量化脑卒中临床试验结局测量中的概念。方法根据预先制定的标准,从MEDLInE数据库中筛选1992～2001年间随机控制实验,提取结局测量,并将结局测量中的概念与ICF建立联系。结果在320个合格研究中,有160个(50%)随机样本。共确定148个健康状况测量指标。在11 283个提取的概念中,有91%的概念可与ICF分类建立联系。在各成分中最常使用的ICF类目是:属于活动与参与的d450步行(70%)、属于身体功能的d525排便功能(62%)和属于环境因素的e399支持和相互联系(30%)。结论ICF分类为确定及量化脑卒中临床治疗结局测量中的概念提供了有用的参考价值;脑卒中结局测量涉及大量概念,对于研究结果的可比性而言,测量内容的一致性是必要的。

关键词：脑卒中脑血管意外结局评定国际功能残疾和健康分类(ICF)

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