Towards Batteryless Cardiac Implantable Electronic Devices – The Swiss Way

Energy harvesting devices are widely discussed as an alternative power source for todays active implantable medical devices. Repeated battery replacement procedures can be avoided by extending the implants life span, which is the goal of energy harvesting concepts. This reduces the risk of complications for the patient and may even reduce device size. The continuous and powerful contractions of a human heart ideally qualify as a battery substitute. In particular, devices in close proximity to the heart such as pacemakers, defibrillators or bio signal (ECG) recorders would benefit from this alternative energy source. The clockwork of an automatic wristwatch was used to transform the hearts kinetic energy into electrical energy. In order to qualify as a continuous energy supply for the consuming device, the mechanism needs to demonstrate its harvesting capability under various conditions. Several in-vivo recorded heart motions were used as input of a mathematical model to optimize the clockworks original conversion efficiency with respect to myocardial contractions. The resulting design was implemented and tested during in-vitro and in-vivo experiments, which demonstrated the superior sensitivity of the new design for all tested heart motions.

Methods of Visualization and Analysis of Cardiac Depolarization in the Three Dimensional Space

Research analysis of electrocardiograms (ECG) today is carried out mostly using time depending signals of different leads shown in the graphs. Definition of ECG parameters is performed by qualified personnel, and requiring particular skills. To support decoding the cardiac depolarization phase of ECG there are methods to analyze space-time convolution charts in three dimensions where the heartbeat is described by the trajectory of its electrical vector. Based on this, it can be assumed that all available options of the classical ECG analysis of this time segment can be obtained using this technique. Investigated ECG visualization techniques in three dimensions combined with quantitative methods giving additional features of cardiac depolarization and allow a better exploitation of the information content of the given ECG signals.

How to Support Toddlers' Autonomy: A Qualitative Study with Childcare Educators

Essai doctoral d’intégration présenté à la Faculté des études supérieures et postdoctorales en vue de l’obtention du grade Psychologiae Doctor (D.Psy) en psychologie clinique, option clinique.

Functional specifications for an advanced chromatography automation system /

Mode of access: Internet.

Long-term Pavement Performance Program (LTPP) data analysis support : National Pooled Fund Study TPF-5(013).

"HRDI-13/11-06(500)E"--P. [4] of cover.

A report in support of proposed amendments to article 5, section 81, of the New York Insurance Law : submitted to the Joint Legislative Committee on Insurance rates and regulation of the State of New York /

Mode of access: Internet.

The works of Jonathan Swift : containing additional letters, tracts, and poems not hitherto published; with notes, and a life of the author /

v.16. Epistolary correspondence. Letters from August 1714, to September 1724.--v.17. Epistolary correspondence. Letters from September 1725 to May 1732.--v.18. Epistolary correspondence. Letters from May 19, 1732, to October 23, 1736.--v.19. Epistolary corresondence. Letters from October 30, 1736, to February 14, 1750. Appendix to the original correspondence between Dean Swift and his friends. Correspondence between Swift and Miss Vanhomrigh. Index.

Human prudence, or, The art by which a man and a woman may be advanced to fortune, to permanent honor, and to real grandeur : adapted to the genius of the citizens, and designed for the use of schools in the United States /

Authorship attributed to William De Britaine.

Light at evening time; a book of support and comfort,

Mode of access: Internet.

Work and life; a study of the social problems of today,

"Some of the chapters of this book, in substance but not in form, have appeared in various magazines...The ideas advanced have also been presented in a series of popular lectures delivered in ...cities of the middle West."--Pref.

Extending the human life span : social policy and social ethics /

"NSF/RA 770123."

The impact of depression on patient outcomes among older adults with lung cancer

Thesis (Ph.D.)--University of Washington, 2016-06

A Knowledge-based System for Intelligent Support in Pharmacogenomics Evidence Assessment: Ontology-driven Evidence Representation, Retrieval, Classification and Interpretation

Thesis (Ph.D.)--University of Washington, 2016-06

Putting teeth into the developmental origins hypothesis: A longitudinal study of early childhood malnutrition, enamel hypoplasia and adolescent health in Amazonian Bolivia

Thesis (Ph.D.)--University of Washington, 2016-06

Air pollution exposure and novel biomarkers of inflammation and cardiac stress in the Multi-Ethnic Study of Atherosclerosis and Air Pollution (MESA Air)

Thesis (Master's)--University of Washington, 2016-06