6 results on '"A.M. Siegel"'
Search Results
2. Ultraviolet comm links for distributed sensor networks
- Author
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A.M. Siegel, Gary A. Shaw, and J. Model
- Subjects
Physics ,business.industry ,Detector ,Diffuse sky radiation ,Astrophysics::Cosmology and Extragalactic Astrophysics ,medicine.disease_cause ,Light scattering ,Optics ,medicine ,Electronic engineering ,Astrophysics::Solar and Stellar Astrophysics ,Daylight ,Absorption (electromagnetic radiation) ,business ,Optical filter ,Wireless sensor network ,Ultraviolet - Abstract
Free-space ultraviolet communication exploits atmospheric scattering and absorption to achieve modest data rates with non-line-of-sight transmit-receive geometries. We introduce the ultraviolet communication concept and report on test bed measurements made outdoors in full daylight.
- Published
- 2005
3. Confocal optoelectronic holography microscope for structural characterization and optimization of MEMS
- Author
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C. Furlong, P. Hefti, A.M. Siegel, and R.J. Pryputniewicz
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Microscope ,Materials science ,business.industry ,Holography ,Magnification ,Electron holography ,law.invention ,Numerical aperture ,Optics ,law ,Microscopy ,Optoelectronics ,Microelectronics ,Digital holographic microscopy ,business - Abstract
In this paper, we describe confocal optoelectronic holography microscopy (COEHM) technique specifically being developed for characterizing the shape of MEMS and microelectronics. This is particularly important because shape is directly related to the functionality, performance, and integrity of the microstructures of interest. A specific feature of COEHM is that it allows characterization of high aspect ratio MEMS and microelectronics. Representative applications demonstrating the capabilities of COEHM are presented. It is shown that measurement resolution is highly dependent on the numerical aperture (NA) of the optical components comprising COEHM and on the quality of image digitization. By utilizing optical components characterized by a magnification factor of 50x and a NA of 0.45, measurement resolution of 25 nm is achieved. The resolution can be increased to 8 nm when utilizing optical components characterized by a magnification factor of 100x and a NA of 0.73.
- Published
- 2004
4. Epilepsy and trisomy 19q—different seizure patterns in a brother and a sister
- Author
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Günter Krämer, Mariluce Riegel, Albert Schinzel, A.M Siegel, Thomas Dorn, University of Zurich, and Dorn, Thomas
- Subjects
Adult ,Male ,Potassium Channels ,10039 Institute of Medical Genetics ,Aneuploidy ,Trisomy ,610 Medicine & health ,Electroencephalography ,Biology ,Bioinformatics ,Epileptogenesis ,Nuclear Family ,Epilepsy ,Seizures ,Photosensitivity ,medicine ,Genetics ,Humans ,Potassium channel ,Sibling ,Genetics (clinical) ,Psychomotor learning ,medicine.diagnostic_test ,Trisomy 19q ,Carbamazepine ,medicine.disease ,10040 Clinic for Neurology ,2728 Neurology (clinical) ,Neurology ,2808 Neurology ,570 Life sciences ,biology ,Female ,Neurology (clinical) ,Chromosomes, Human, Pair 19 ,medicine.drug - Abstract
In symptomatic epilepsies due to chromosomal aberrations, epileptogenesis may be either the direct consequence of deletion or duplication of a gene causing seizures or may have a more complex etiology caused by the disturbance of the interaction of several genes and environmental factors. We report on a brother and a sister with trisomy 19q13.3→qter who present different epileptologic features and discuss epileptogenesis in this syndrome with respect to genes known to be located on the distal part of chromosome 19q. Both patients share mental retardation and several dysmorphic features. The boy was hypoxic at birth and showed an extremely delayed psychomotor development. The girl, however, had no significant neonatal problems, and her psychomotor development was better. Although the male had an abnormal EEG in childhood, his first partial seizures occurred only as late as at age 31 years. He subsequently became seizure-free with carbamazepine (CBZ). In contrast, the girl already suffered from absence-like seizures during childhood and became seizure-free under ethosuccimide (ESM). A photoparoxysmal response, however, is still visible in her EEG. The difference between the epileptologic features in these siblings points to epileptogenic mechanisms placed far downstream on the way from genotype to phenotype. The photoparoxysmal response—otherwise a facultative finding in genetically determined epilepsies—in the EEG of the sister, however, points to a closer relationship between the duplicated genes and epileptogenesis. The fact that genes encoding potassium channels are located on 19q13.3–q13.4 may also support the latter assumption.
- Published
- 2001
5. Neuroleptic malignant-like syndrome and acute hepatitis during tolcapone and clozapine medication
- Author
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A.M. Siegel, K. Hess, M.W. Blum, and R. Meier
- Subjects
medicine.medical_specialty ,Gastroenterology ,Drug Administration Schedule ,Central nervous system disease ,Antiparkinson Agents ,Nitrophenols ,Benzophenones ,Degenerative disease ,Liver Function Tests ,Internal medicine ,medicine ,Humans ,Neuroleptic Malignant Syndrome ,Clozapine ,Aged ,Hepatitis ,Neurologic Examination ,Tolcapone ,Dose-Response Relationship, Drug ,business.industry ,medicine.disease ,Endocrinology ,Neurology ,Toxicity ,Neuroleptic malignant ,Drug Therapy, Combination ,Female ,Neurology (clinical) ,Chemical and Drug Induced Liver Injury ,business ,Acute hepatitis ,medicine.drug ,Antipsychotic Agents - Published
- 2001
6. Subject Index Vol. 77, 2001
- Author
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Patrick J. Kelly, Herbert A.O. Souza, L.Q. Lang, Jay L. Shils, B. Sun, Akinori Kondo, Katsunari Yoshida, Kazutaka Kobayashi, Osvaldo Vilela Filho, Tomokatsu Hori, George A. Ojemann, M. Schulzer, P.J. Lewis, Ana Luisa Velasco, T.Z. Aziz, Maisa R. Araujo, José E. S. Cavalcante, R.S. Palur, A. Bueno De Camargo, C. Joint, J.Ch. Sol, R.T. Daniel, Delson J. Silva, J. Casaux, Francisco Velasco, Fumitaka Yamane, Aleksandar Beric, Takaomi Taira, B.C. Jobst, P.D. Williamson, Philippe Ryvlin, Martin Zonenshayn, Takamitsu Yamamoto, P. Bousquet, Kiyotaka Hashizume, Dominic Thyagarajan, Catherine Fischer, Ali R. Rezai, Yoichi Katayama, Fiacro Jiménez, Marcos Velasco, J.F. Stein, Kenji Sugiyama, Jin Woo Chang, Atsushi Sawamura, Mariluza T. Silveira, Hiroki Namba, X. Liu, R.B. Scott, K.Y. Liu, Sang Sup Chung, L. Pan, R. Gregory, Tatsuya Tanaka, Djordje Sterio, Naoki Yokota, Ch. Mascott, Ronald R. Tasker, Joaquim T. Sousa, Fernando P. Ferraz, Craig H. Meyer, Philip L. Gildenberg, Alon Y. Mogilner, Atsumi Takenobu, Vedran Deletis, Diana Menez, Harald Fodstad, Chihiro Ohye, T.P. Joseph, Shigeru Nishizawa, D. Nandi, Jun Kojima, Lucilene F. Santos, Seiji Ohta, Luis G. Silva, P.Y. Cong, R. Scott, M.J. Chandy, Hiroshige Tsuda, Marc Guénot, Lauri V. Laitinen, Hideki Oshima, Akira Hodozuka, Jean Isnard, Guoming Luan, J.A. Lotterie, Souichi Akamine, N. Giladi, J.Cl. Verdié, A.M. Siegel, Terrance M. Darcey, Qin Bai, Masaru Matsumura, Chongcheng Wang, Brian H. Kopell, P. Bain, Chikashi Fukaya, Jae Young Choi, Marco A.C. Silva, C. Gnanamuthu, F.E. Roux, S. Parkin, François Mauguière, Jong Hee Chang, C. Berk, Michele Tagliati, Luisa Rocha, Karine Ostrowsky, V.M. Thadani, Marc Sindou, Masahiko Kasai, C.R. Honey, Ron L. Alterman, Zhenrong Sun, David W. Roberts, Irma Marquez, Hirofumi Nakai, Y. Lazorthes, Tohru Shibazaki, Tetsuo Yokoyama, Rodopiano S. Florencio, R.G. Gregory, John Miles, and Young Gou Park
- Subjects
medicine.medical_specialty ,Index (economics) ,business.industry ,medicine ,Surgery ,Medical physics ,Subject (documents) ,Neurology (clinical) ,business - Published
- 2001
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