Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- Dynamics (3)
- Berberidales (2)
- California (2)
- Diseases (2)
- Ecological wood anatomy (2)
-
- Medicine (2)
- Papaverales (2)
- Peninsular Ranges (2)
- Ranunculiflorae (2)
- Santa Ana Mountains (2)
- Storied wood structure (2)
- Agavaceae (1)
- Antihormones (1)
- Arthropods (1)
- Ascomycete (1)
- Autophagomyces (1)
- Avalanche photodiodes (1)
- Axial parenchyma (1)
- Baja California (1)
- Bifurcation theory (1)
- Biological control systems (1)
- Bones (1)
- Caryophyllales (1)
- Catalogue (1)
- Centrospermae (1)
- Chaetoplea (1)
- Chaparral (1)
- Chenopodiales (1)
- Climate (1)
- Coastal sage scrub (1)
- Publication
- Publication Type
Articles 1 - 18 of 18
Full-Text Articles in Life Sciences
Complex Dynamics And Multistability In A Damped Harmonic Oscillator With Delayed Negative Feedback, Sue Ann Campbell, Jacques Bélair, Toru Ohira, John Milton
Complex Dynamics And Multistability In A Damped Harmonic Oscillator With Delayed Negative Feedback, Sue Ann Campbell, Jacques Bélair, Toru Ohira, John Milton
WM Keck Science Faculty Papers
A center manifold reduction and numerical calculations are used to demonstrate the presence of limit cycles, two-tori, and multistability in the damped harmonic oscillator with delayed negative feedback. This model is the prototype of a mechanical system operating with delayed feedback. Complex dynamics are thus seen to arise in very plausible and commonly occurring mechanical and neuromechanical feedback systems.
Static Forces And Moments Generated In The Insect Leg: Comparison Of A Three-Dimensional Musculo-Skeletal Computer Model With Experimental Measurements, Robert J. Full, Anna N. Ahn
Static Forces And Moments Generated In The Insect Leg: Comparison Of A Three-Dimensional Musculo-Skeletal Computer Model With Experimental Measurements, Robert J. Full, Anna N. Ahn
All HMC Faculty Publications and Research
As a first step towards the integration of information on neural control, biomechanics and isolated muscle function, we constructed a three-dimensional musculo-skeletal model of the hind leg of the death-head cockroach Blaberus discoidalis. We tested the model by measuring the maximum force generated in vivo by the hind leg of the cockroach, the coxa-femur joint angle and the position of this leg during a behavior, wedging, that was likely to require maximum torque or moment production. The product of the maximum force of the leg and its moment arm yielded a measured coxa-femur joint moment for wedging behavior. The …
A High-Bandwidth Frequency-Domain Photon Migration Instrument For Clinical Use, Steen J. Madsen, Eric R. Anderson, Richard C. Haskell, Bruce J. Tromberg
A High-Bandwidth Frequency-Domain Photon Migration Instrument For Clinical Use, Steen J. Madsen, Eric R. Anderson, Richard C. Haskell, Bruce J. Tromberg
All HMC Faculty Publications and Research
We have developed a high-bandwidth frequency-domain photon migration (FDPM) instrument which is capable of noninvasively determining the optical properties of biological tissues in near-real-time. This portable, inexpensive, diode-based instrument is unique in the sense that we employ direct diode laser modulation and avalanche photodiode detection. Diffusion models were used to extract the optical properties (absorption and transport scattering coefficients)of tissue-simulating solutions.from the 300 kHz to I GHz photon density wave data.
Dynamic Diseases In Neurology And Psychiatry, John Milton, Deborah Black
Dynamic Diseases In Neurology And Psychiatry, John Milton, Deborah Black
WM Keck Science Faculty Papers
Thirty-two (32) periodic diseases of the nervous system are identified in which symptoms and/or signs recur. In 10/32, the recurrence of a symptom complex is one of the defining features of the illness, whereas in 22/32 oscillatory signs occur in the setting of an ongoing nervous system disorder. We discuss the possibility that these disorders may be dynamic diseases.
Dynamical Disease: Identification, Temporal Aspects And Treatment Strategies For Human Illness, Jacques Bélair, Leon Glass, Uwe An Der Heiden, John Milton
Dynamical Disease: Identification, Temporal Aspects And Treatment Strategies For Human Illness, Jacques Bélair, Leon Glass, Uwe An Der Heiden, John Milton
WM Keck Science Faculty Papers
Dynamical diseases are characterized by sudden changes in the qualitative dynamics of physiological processes, leading to abnormal dynamics and disease. Thus, there is a natural matching between the mathematical field of nonlinear dynamics and medicine. This paper summarizes advances in the study of dynamical disease with emphasis on a NATO Advanced Research Workshop held in Mont Tremblant, Quebec, Canada in February 1994. We describe the international effort currently underway to identify dynamical diseases and to study these diseases from a perspective of nonlinear dynamics. Linear and nonlinear time series analysis combined with analysis of bifurcations in dynamics are being used …
Wood Anatomy Of Caryophyllaceae: Ecological, Habital, Systematic, And Phylogenetic Implications, Sherwin Carlquist
Wood Anatomy Of Caryophyllaceae: Ecological, Habital, Systematic, And Phylogenetic Implications, Sherwin Carlquist
Aliso: A Journal of Systematic and Floristic Botany
Wood of Caryophyllaceae is more diverse than has been appreciated. Imperforate tracheary elements may be tracheids, fiber-tracheids, or libriform fibers. Rays may be uniseriate only, multiseriate only, or absent. Roots of some species (and sterns of a few of those same genera) have vascular tissue produced by successive cambia. The diversity in wood anatomy character states shows a range from primitive to specialized so great that origin close to one of the more specialized families of Chenopodiales, such as Chenopodiaceae or Amaranthaceae, is unlikely. Caryophyllaceae probably branched from the ordinal clade near the clade's base, as cladistic evidence suggests. Raylessness …
Trichomes Of Nama (Hydrophyllaceae) That Produce Insect-Active Compunds, Bradley F. Binder
Trichomes Of Nama (Hydrophyllaceae) That Produce Insect-Active Compunds, Bradley F. Binder
Aliso: A Journal of Systematic and Floristic Botany
Nama hispidum, N. lobbii, N. rothrockii, and N. xylopodum have two basic types of trichomes on the adaxial and abaxial surfaces: glandular and nonglandular. Nama hispidum and N. xylopodum have (1) short semierect or intermediate-length acicular trichomes that often recurve toward the leaf surface and (2) short-stalked capitate glands. The larger acicular trichomes have micropapillae. Nama lobbii has long filiform trichomes and sessile capitate glands. Nama rothrockii has erect, smooth subulate trichomes and long-stalked capitate glands. Morphological diversity of trichomes in Nama and their possible functional significance as a predator defense are discussed.
Plants Of The Tres Marias Islands, Nayarit, Mexico, Lee W. Lenz
Plants Of The Tres Marias Islands, Nayarit, Mexico, Lee W. Lenz
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
A New Species Of Hechita (Bromeliaceae, Pitcairnoideae) From The Cape Region, Baja California Sur, Mexico, Lee W. Lenz
A New Species Of Hechita (Bromeliaceae, Pitcairnoideae) From The Cape Region, Baja California Sur, Mexico, Lee W. Lenz
Aliso: A Journal of Systematic and Floristic Botany
Hechtia gayii is described and illustrated and its relationship to other members of the genus is discussed.
A New Combination In The Cactaceae Of Baja California, Mexico, Lee W. Lenz
A New Combination In The Cactaceae Of Baja California, Mexico, Lee W. Lenz
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Corylophomyces, A New Dioecious Genus Of Laboulbeniales On Corylophidae (Coleoptera), Richard K. Benjamin
Corylophomyces, A New Dioecious Genus Of Laboulbeniales On Corylophidae (Coleoptera), Richard K. Benjamin
Aliso: A Journal of Systematic and Floristic Botany
A new dioecious genus of Laboulbeniaceae (Laboulbeniales), Corylophomyces, was established to accommodate five species parasitizing Corylophidae (Coleoptera; Cucujoidea): C. peyerimhoffii (≡Cryptandromyces peyerimhoffit); C. sericoderi (≡Autophagomyces sericoderi); C. sarawakensis (≡A. sarawakensis); and two new species, C. reflexus and C. weirii. A key to the taxa was given and all were illustrated with line drawings. Corylophomyces was placed in Amorphomycetinae sensu Tavares. The other genera included in this subtribe by Tavares in 1985, i.e., Amorphomyces, Dioicomyces, Nanomyces, Rhizopodomyces, and Tetrandromyces, were compared with one another and with the new genus.
Wood And Bark Anatomy Of Ranunculaceae (Including Hydrastis) And Glaucidiaceae, Sherwin Carlquist
Wood And Bark Anatomy Of Ranunculaceae (Including Hydrastis) And Glaucidiaceae, Sherwin Carlquist
Aliso: A Journal of Systematic and Floristic Botany
Wood anatomy of 14 species of Clematis and one species each of Delphinium, Helleborus, Thalictrum, and Xanthorhiza (Ranunculaceae) is compared to that of Glaucidium palma tum (Glaucidiaceae) and Hydrastis canadensis (Ranunculaceae, or Hydrastidaceae of some authors). Clematis wood has features typical of wood of vines and lianas: wide (earlywood) vessels, abundant axial parenchyma (earlywood, some species), high vessel density, low proportion of fibrous tissue in wood, wide rays composed of thin-walled cells, and abrupt origin of multiseriate rays. Superimposed on these features are expressions indicative of xeromorphy in the species of cold or dry areas: numerous narrow latewood vessels, presence …
Vascular Flora Of The San Mateo Canyon Wilderness Area, Cleveland National Forest, California, Steve Boyd, Timothy S. Ross, Orlando Mistreta, David Bramlet
Vascular Flora Of The San Mateo Canyon Wilderness Area, Cleveland National Forest, California, Steve Boyd, Timothy S. Ross, Orlando Mistreta, David Bramlet
Aliso: A Journal of Systematic and Floristic Botany
The Santa Ana Mountains, as a whole, have been well-studied floristically. Little work, however, has been conducted previously in the southwestern portion of the range which includes the San Mateo Canyon Wilderness Area of the Cleveland National Forest. This study reports the results of our floristic surveys conducted in the wilderness over a three-year period, from December 1991 through October 1994. The study area, encompassing the headwaters of the San Mateo Canyon watershed, is topographically and geologically diverse. Vegetation is characterized by a complex assemblage of chaparral and coastal sage scrub, oak woodland, native and nonnative grasslands, and riparian woodland …
Additions To The Vascular Flora Of The Santa Ana Mountains, California, Steve Boyd, Timothy S. Ross, Fred M. Roberts Jr.
Additions To The Vascular Flora Of The Santa Ana Mountains, California, Steve Boyd, Timothy S. Ross, Fred M. Roberts Jr.
Aliso: A Journal of Systematic and Floristic Botany
The Santa Ana Mountains, part of the Peninsular Ranges of southern California, have been welldocumented floristically. Nevertheless, since publication of a preliminary vascular flora for the range in 1978, a significant number of additions have been reported. These are principally from studies of two subregions in the southern portion of the range and include 42 taxa from the Santa Rosa Plateau and 88 taxa from the San Mateo Canyon Wilderness Area. Documentation is provided here for an additional 66 taxa not included in other published floristic accounts of the Santa Ana Mountains. A voucher specimen and generalized distribution information are …
New Fungi From Dasylirion (Agavaceae), Annette W. Ramaley
New Fungi From Dasylirion (Agavaceae), Annette W. Ramaley
Aliso: A Journal of Systematic and Floristic Botany
Dead leaves of Dasylirion were collected in Texas in Guadalupe Mountains National Park and Big Bend National Park, and in the Valley of Fires, New Mexico. The fungi present were identified and grown in culture to identify teleomorph-anamorph connections. Four new ascomycete species are described—Graphyllium dasylirionis, Splanchnonema dasylirionis, Chaetoplea dasylirionis, and Chaetoplea sotolifoliorum. In addition, a new genus, Parahendersonia, is described to accommodate the coelomycete anamorph of Chaetoplea dasylirionis.
Four New Species Of Uncinia (Cyperaceae) From Northern South America, Gerald A. Wheeler, Paul Goetchebeur
Four New Species Of Uncinia (Cyperaceae) From Northern South America, Gerald A. Wheeler, Paul Goetchebeur
Aliso: A Journal of Systematic and Floristic Botany
Four new species of Uncinia (Cyperaceae) are described from northern South America. Three of them, U. lacustris, U. paludosa, and U. tenuifolia, belong in sect. Platyandrae; the fourth, U. subsacculata, belongs in sect. Uncinia. Three of the new species are known only from Ecuador, whereas U. paludosa has also been collected in Colombia.
Bones Of Puffinus Lherminieri Lesson (Aves: Procellaridae) And Two Other Vertebrates From Cueva Del Agua, Mona Isalnd, Puerto Rico (West Indies), Angel M. Nieves-Rivera, John M. Mylroie, Donald A. Mcfarlane
Bones Of Puffinus Lherminieri Lesson (Aves: Procellaridae) And Two Other Vertebrates From Cueva Del Agua, Mona Isalnd, Puerto Rico (West Indies), Angel M. Nieves-Rivera, John M. Mylroie, Donald A. Mcfarlane
WM Keck Science Faculty Papers
From a dive in Cueva del Agua, Mona Island, Puerto Rico, twelve un-mineralized bones of Puffinus Lherminieri Lesson, one of Cyclura stejnegeri Stejneger, and one of Moormops blainvilii Leach were collected. The subfossil evidence confirms that P. Lherminieri was a common species on Mona Island. Cyclura stejnegeri and M. blainvilii probably became trapped and died in the pool chamber.
Wood Anatomy Of Berberidaceae: Ecological And Phylogenetic Considerations, Sherwin Carlquist
Wood Anatomy Of Berberidaceae: Ecological And Phylogenetic Considerations, Sherwin Carlquist
Aliso: A Journal of Systematic and Floristic Botany
Qualitative and quantitative data are presented for 21 collections of Berberis and one each of Epimedium, Jeffersonia, and Nandina. Most species of Berberis have large numbers of narrow vessels ~ixed with vasicentric tracheids. Scalariform perforation plates are reported here only for Epimedium, m wh1ch they are occasional. Berberidaceae have living fibers (Berberis), fiber-tracheids plus living fibers (Nandina), or tracheids (Jeffersonia) as imperforate tracheary elements. Axial parenchyma is reported here for Jeffersonia and one species of Berberis. Previous reports of axial parenchyma in Berberis and Nandina likely refer to undivided living fibers, mostly intermixed with vessels, which are slightly shorter and …