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用于混合金属保护层的改进型OSP
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作者 Michael Carano john hunt 杨烈文 《印制电路信息》 2001年第8期41-44,共4页
2000年4月在第一部分讨论了苯基咪唑OSP(Organic Solderability Preservative--有机可焊性保护层)工艺.第二部分讨论该工艺的实现.挠性印制电路(图1)与典型的刚性板要求在设计和制造上有着明显的不同.当通过OSP生产线处理挠性电路时,这... 2000年4月在第一部分讨论了苯基咪唑OSP(Organic Solderability Preservative--有机可焊性保护层)工艺.第二部分讨论该工艺的实现.挠性印制电路(图1)与典型的刚性板要求在设计和制造上有着明显的不同.当通过OSP生产线处理挠性电路时,这些差别就会带来问题.当覆盖膜材料上使用冲孔或激光成孔造成凹陷,在处理过程中会聚集液体.在需要安装具有刚性散热要求的地方,则在处理过程中要给挠性电路附加金属的和/或非金属的加强筋.用于这些电路的OSP必须具有与加强材料(从加强的和非加强的聚合物到各种不锈钢和铝合金)的很强的兼容性. 展开更多
关键词 混合金属保护层 苯基咪唑 印刷电路
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Does the use of double hormone replacement therapy for trauma patient organ donors improve organ recovery for transplant
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作者 Eden M Gallegos Tanner Reed +12 位作者 Paige Deville Blake Platt Claudia Leonardi Lillian Bellfi Jessica Dufrene Saad Chaudhary john hunt Lance Stuke Patrick Greiffenstein Jonathan Schoen Alan Marr Anil Paramesh Alison A Smith 《World Journal of Transplantation》 2024年第2期119-125,共7页
BACKGROUND With an ongoing demand for transplantable organs,optimization of donor management protocols,specifically in trauma populations,is important for obta-ining a high yield of viable organs per patient.Endocrine... BACKGROUND With an ongoing demand for transplantable organs,optimization of donor management protocols,specifically in trauma populations,is important for obta-ining a high yield of viable organs per patient.Endocrine management of brain-dead potential organ donors(BPODs)is controversial,leading to heterogeneous clinical management approaches.Previous studies have shown that when levo-thyroxine was combined with other treatments,including steroids,vasopressin,and insulin,BPODs had better organ recovery and survival outcomes were increased for transplant recipients.AIM To determine if levothyroxine use in combination with steroids in BPODs increased the number of organs donated in trauma patients.METHODS A retrospective review of adult BPODs from a single level 1 trauma center over ten years was performed.Exclusion criteria included patients who were not solid organ donors,patients who were not declared brain dead(donation after circulatory death),and patients who did not receive steroids in their hospital course.Levothyroxine and steroid administration,the number of organs donated,the types of organs donated,and demographic information were recorded.Univariate analyses were performed with P<0.05 considered to be statistically significant.RESULTS A total of 88 patients met inclusion criteria,69(78%)of whom received levothyroxine and steroids(ST/LT group)vs 19(22%)receiving steroids without levothyroxine(ST group).No differences were observed between the groups for gender,race,pertinent injury factors,age,or other hormone therapies used(P>0.05).In the ST/LT group,68.1%(n=47)donated a high yield(3-5)of organ types per donor compared to 42.1%(n=8)in the ST group(P=0.038).There was no difference in the total number of organ types donated between the groups(P=0.068).CONCLUSION This study suggests that combining levothyroxine and steroid administration increases high-yield organ donation per donor in BPODs in the trauma patient population.Limitations to this study include the retrospective design and the relatively small number of organ donors who met inclusion criteria.This study is unique in that it mitigates steroid administration as a confounding variable and focuses specifically on the adjunctive use of levothyroxine. 展开更多
关键词 Organ donation Trauma Brain death Levothyroxine Hormone replacement therapy Steroids Organ donor Retrospective
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Self-referent phenotype matching and its role in female mate choice in arthropods
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作者 Carie B. WEDDLE john hunt Scott K. SAKALUK 《Current Zoology》 SCIE CAS CSCD 2013年第2期239-248,共10页
关键词 节肢动物类群 表型匹配 女性 识别机制 服务中心 碳氢化合物 化学感受 择偶
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