Radio device locates underground pipe lines     

R.H.O. 《Journal of The Franklin Institute》1937

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Survey of the Nicaragua route for a ship canal     

O.W. Childs 《Journal of The Franklin Institute》1871,91(4):249-253

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Broadcast scripture lessons     

H.L.O. Flecker M.A. 《British Journal of Religious Education》1936,3(4):196-201

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Estimates of depth to bedrock at dam sites in the Gunnison,Little Colorado,and Zuni River basins     

R.H.O. 《Journal of The Franklin Institute》1941

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Antarctic cruiser     

R.H.O. 《Journal of The Franklin Institute》1939

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Zu diesem Heft     

O. G. 《Sportwissenschaft》1990,20(4):371-371

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“系统动力学基础”本科课程教学思考与实践     

王文广  杨峰  朱一凡 《科教文汇》2015,(3):56-57,98

"系统动力学基础"是系统科学理论与建模仿真实践紧密结合的一门课程。本文从课堂讲授、实验教学、答疑考核角度出发,提出在课堂讲授方面需要精心准备课件,激发学员的主体意识,综合运用多种教学方法;在实验教学方面需要正确认识实验教学的作用,精心设计理论验证型实验和实际应用型实验;在答疑考核方面需要师生互动,教学相长。最后探讨了课程实施遇到的问题以及改进提高的方法。  相似文献   

Spontaneous Tumor Lysis Syndrome in an Infant: A Case Report     

Mamatha T. Shenoy  Benedicta D’Souza  Lalesh Naik Akshatha  Vivian D’Souza  Madan Gopal Rajan 《Indian journal of clinical biochemistry : IJCB》2015,30(3):360-362

Tumor lysis syndrome has been observed in patients with malignancies with high cellular burden and high cell turnover, tumor sensitive to therapy, especially after initiating medical treatment. It very rarely occurs spontaneously. The case described here is of 6 months male infant who presented with fever since 1 month and loose stools associated with blood since 15 days. The laboratory investigations showed lactate dehydrogenase (LDH) of 6,192 IU/L and serum uric acid 18.2 mg/dl along with pancytopenia. The infant presented with electrolyte abnormalities and renal failure.  相似文献   

Impact of age on haematological markers pre- and post-marathon running     

Thomas G. Martin  Rachel W. Pata  Johanna D’Addario  Lauren Yuknis  Rebecca Kingston  Richard Feinn 《Journal of sports sciences》2015,33(19):1988-1997

This study investigated whether haematological markers differ between young and masters marathon participants, running at similar performance levels. Nine young (31.89 ± 4.96 years) and eight masters (63.13 ± 4.61 years) runners participated. At five time points (pre-race through 54 h post-race), a complete blood cell count, basic metabolic panel and creatine kinase (CK) isoenzyme panel were assessed. Race performance was standardised using the World Masters Association Age Grading Performance Tables. Total CK levels were elevated for all participants at all time points post-race (P < 0.001). The CK-isoenzyme MB% was elevated across groups at 6, 30 and 54 h post-race (P < 0.01, P < 0.01 and P < 0.05), with masters runners having a higher CK-MB% at 30 and 54 h (P < 0.05, P < 0.05). Total white blood cell and neutrophil counts were elevated through 6 h post-race (P < 0.001), with higher levels found in younger runners (P < 0.001). When considering all blood work, masters runners had a higher number of abnormal values at 6, 30 and 54 h post-race (P < 0.05, P < 0.01 and P < 0.05). In conclusion, masters runners demonstrated sustained CK-MB elevation, which may suggest greater cardiac stress. However, future studies using additional cardiac markers should be completed to confirm these findings. In addition, masters runners showed an increased number of laboratory values outside normal range, indicating the body’s reduced capacity to respond to marathon running.  相似文献   

Osmotically driven drug delivery through remote-controlled magnetic nanocomposite membranes     

A. Zaher  S. Li  K. T. Wolf  F. N. Pirmoradi  O. Yassine  L. Lin  N. M. Khashab  J. Kosel 《Biomicrofluidics》2015,9(5)

Implantable drug delivery systems can provide long-term reliability, controllability, and biocompatibility, and have been used in many applications, including cancer pain and non-malignant pain treatment. However, many of the available systems are limited to zero-order, inconsistent, or single burst event drug release. To address these limitations, we demonstrate prototypes of a remotely operated drug delivery device that offers controllability of drug release profiles, using osmotic pumping as a pressure source and magnetically triggered membranes as switchable on-demand valves. The membranes are made of either ethyl cellulose, or the proposed stronger cellulose acetate polymer, mixed with thermosensitive poly(N-isopropylacrylamide) hydrogel and superparamagnetic iron oxide particles. The prototype devices'' drug diffusion rates are on the order of 0.5–2 μg/h for higher release rate designs, and 12–40 ng/h for lower release rates, with maximum release ratios of 4.2 and 3.2, respectively. The devices exhibit increased drug delivery rates with higher osmotic pumping rates or with magnetically increased membrane porosity. Furthermore, by vapor deposition of a cyanoacrylate layer, a drastic reduction of the drug delivery rate from micrograms down to tens of nanograms per hour is achieved. By utilizing magnetic membranes as the valve-control mechanism, triggered remotely by means of induction heating, the demonstrated drug delivery devices benefit from having the power source external to the system, eliminating the need for a battery. These designs multiply the potential approaches towards increasing the on-demand controllability and customizability of drug delivery profiles in the expanding field of implantable drug delivery systems, with the future possibility of remotely controlling the pressure source.  相似文献