Four new species of fossil mermithids (Nematoda: Mermithidae) are described from amber: Heydenius arachnius n. sp. from a spider (Arachnida: Araneae) in Dominican amber, Heydenius phasmatophilus n. sp., from a walking stick (Phasmatodea: Phasmatidae) in Baltic amber, Heydenius podenasae n. sp. from a moth (Lepidoptera) in Baltic amber and Heydenius...
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GeorgeOPOINARJR
Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
Background: Both sexes of bat flies in the families Nycteribiidae and Streblidae (Diptera: Hippoboscoidea) reside in the hair or on the wing membranes of bats and feed on blood. Members of the Nycteribiidae transmit bat malaria globally however extant streblids have never been implemented as vectors of bat malaria. The...
Four new species of fossil mermithids (Nematoda: Mermithidae) are described from amber: Heydenius arachnius n. sp. from a spider (Arachnida: Araneae) in Dominican amber, Heydenius phasmatophilus n. sp., from a walking stick (Phasmatodea: Phasmatidae) in Baltic amber, Heydenius podenasae n. sp. from a moth (Lepidoptera) in Baltic amber and Heydenius...
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Baltic amber.
(Scale bar = 390 µm.)
Fig. 7. The filarid Cascofilaria baltica Poinar (arrow
Background: It is rare to find terrestrial nematode lineages parasitizing arthropods inhabiting the intertidal or littoral zone of the oceans. During an ecological study along the Oregon dunes, an allantonematid nematode
(Tylenchomorpha: Allantonematidae) was discovered parasitizing the intertidal shore bug, Saldula laticollis (Reuter)
(Hemiptera: Saldidae). This shore bug is adapted...
Four new species of fossil mermithids (Nematoda: Mermithidae) are described from amber: Heydenius arachnius n. sp. from a spider (Arachnida: Araneae) in Dominican amber, Heydenius phasmatophilus n. sp., from a walking stick (Phasmatodea: Phasmatidae) in Baltic amber, Heydenius podenasae n. sp. from a moth (Lepidoptera) in Baltic amber and Heydenius...
Paleorhodococcus dominicanus n. gen., n sp. (Actinobacteria) is described from a fecal droplet of Triatoma dominicana (Hemiptera: Reduviidae: Triatominae) in Dominican amber. The fossil can be distinguished from most extant species of the closely related extant genus Rhodococcus Zopf, 1891 by its spherical cocci forming substrate filaments with elementary branching,...
Silica bodies in short cell epidermal leaf cells of the Early Cretaceous Programinis laminatus (Poales) in Burmese amber are characterized. The great majority are rondels and elongated quadrates aligned horizontally in relation to the leaf axis. Rondel types include circular, elliptical, oblong, long and short forms. Quadrate types include short...
A flea preserved in Dominican amber is described as Atopopsyllus cionus, n. gen., n. sp., (Atopopsyllini n. tribe, Spilopsyllinae, Pulicidae). The male specimen has two unique characters that have not been noted in previous extant or extinct fleas, thus warranting its tribal status. These characters are 5-segmented maxillary palps and...
Nitula baltica sp. nov. and Cyathus dominicanus sp. nov. are described from Cenozoic Baltic and Dominican amber. These are the first fossil members of the Family Nidulariaceae and show that the basic characteristics of this group were already established some 40-50 million years ago.
The present study describes a primitive kissing bug (Hemiptera: Reduviidae: Triatominae) in mid-Cretaceous amber from northern Myanmar. The fossil, which is described as Paleotriatoma metaxytaxa gen. et sp. nov., contains a predominance of features of the Triatominae as well as some characters of the Reduviinae and is considered an intermediate...
A new weevil species – Baris grossacavis Poinar
and Legalov, sp. nov. (Coleoptera: Curculionidae) – is described
from Dominican amber. The new species is close to
Baris rubripes Casey, 1892, but differs by possessing large
punctures over much of its body, including the pronotum;
elytral intervals with rows of narrow...
The history of entomopathogenic nematology is briefly reviewed. Topic selections include early descriptions of members
of Steinernema and Heterorhabditis, how only morphology was originally used to distinguish between the species; descriptions of the
symbiotic bacteria and elucidating their role in the nematode- insect complex, including antibiotic properties, phase variants, and...
An ambrosia fungus is described from filamentous sporodochia adjacent to a wood-boring ambrosia beetle (Coleoptera: Curculionidae: Platypodinae) in mid-Cretaceous Burmese amber. Yeast-like propagules and hyphal fragments of Paleoambrosia entomophila gen. nov. et sp. nov. occur in glandular sac mycangia located inside the femur of the beetle. This is the first...
Background: The harlequin ladybird, Harmonia axyridis Pallas (Coleoptera: Coccinellidae) is native to central and eastern Asia and was purposely introduced into Europe to control aphids. While it proved to be a good biological control agent, its rapid spread and buildup of large populations made it a nuisance, since it overwinters...
A new genus and species of megaridid, Minysporops dominicanus gen. n., sp. n. (Hemiptera: Megarididae), is described from Dominican amber. Diagnostic characters include: Minute (under 2.00 mm), glabrous, nearly round body; declivitous flat-topped head; eyes constricted near middle, with dorsal eye shields; ocelli ovoid-elliptical; antennae 4-segmented, setose; rostrum 4- segmented;...
A new genus and species of chrysomeline, Stenaspidiotus microptilus, n. gen., n. sp., (Coleoptera: Chrysomelidae: Chrysomelinae) is described from Dominican amber. Diagnostic characters include an elongate, flattened body; small eyes; a narrow, long pronotum with a width/length ratio of 1.6, an irregular pronotal surface with marginated lateral edges, distinct humeral...
Rickettsial-like cells are reported from the body cavity of the Myanmar amber larval tick, Cornupalpatum burmanicum (Ixodida: Ixodidae). These cells are characterized and described in a new collective fossil genus erected for putative rickettsial in fossil ticks. The size and shape of the fossil cells resemble those of present day...
A new genus and species of Snail-killing flies, Dominimyza tanyacaena, n. gen., n. sp. (Diptera: Sciomyzidae) is described from Dominican amber. Diagnostic characters for Dominimyza include a propleuron with a strong bristle, an elongate porrect flagellum with a long, finely pubescent arista, divergent ocellar, post-ocellar and outer vertical bristles, convergent...
Amber preserves microscopic, soft-bodies organisms and is a good medium in which to trace the evolution of pathogen-vector associations. Spirochetes-like cells (Spirochaetales: Spirochaetaceae) in the hemocoel and lumen of the alimentary tract of a larva tick (Amblyomma sp. Arachnida: Ixodidae) in Dominican amber are described in the collective fossil genus...
A new genus and species of bostrichid, Discoclavata dominicana n. gen., n. sp., (Coleoptera: Bostrichidae) and a new genus and species of eucnemid, Lissantauga epicrana n. gen., n. sp. (Coleoptera: Eucnemidae) are described from Dominican amber. Diagnostic characters of Discoclavata dominicana include an extended body, strongly hypognathous head, asparate dorsal...
Pulchellaranea pedunculatas n. gen., n. sp. (Araneae: Araneidae), a new genus of orb web spiders, is described from Dominican amber. Diagnostic characters for the new taxon are: lateral eyes positioned on peduncles arising from the upper edge of the carapace, large, protruding anterior median eyes that are twice the diameter...
The following new genus and seven new species of Cossonine weevils (Curculionidae: Cossoninae) are described from Dominican amber: Acamptus exilipes Poinar and Legalov, n. sp.,(similar to A. rigidus), Caulophilus camptus Poinar and Legalov, n. sp., (similar to C. bennetti), Caulophilus elongatus Poinar and Legalov, n. sp., (similar to C. swensoni)...
A new nematode, Tripius gyraloura n. sp.,
is described from the arundo gall midge, Lasioptera
donacis Coutin (Diptera: Cecidomyiidae). This gall
midge is being considered as a biological control agent
for use in North America against the introduced giant
reed Arundo donax (L.) (Poaceae: Cyperales). Thus
the present study was...
A new genus and species, Bicalcasura maculata gen. n., sp. n. (Coleoptera: Curculionoidea: Dryophthoridae) is described from Dominican amber as the first fossil member of the Tribe Diocalandrini. The new genus is characterized by procoxae located in the middle of the prothorax, a thick, short and strongly curved rostrum with...
A new nematode, Anomalomermis ephemerophagis n. g., n. sp. (Nematoda: Mermithidae) is described from the mayfly Ephemerella maculata Traver, 1934 (Ephermeroptera: Ephermerellidae) in California. The new species is characterized by 6 cephalic papillae and 4 additional disk papillae located on the head between the cephalic papillae and stoma. Additional diagnostic...
Alarista succina gen. et sp. nov. (Poaceae) is described from a single floret preserved in amber of Tertiary age originating from the Dominican Republic. The new genus is characterized by 1) a narrow winged lemma awn, 2) numerous (as many as 17) lemma nerves, 3) a lengthy rachilla internode (implying...
Eulechriops argyrosoma sp. n. (Curculionoidea: Conoderinae: Lechropini) and Geratozygops platysoma sp. n., G. stenosoma sp. n. and G. arsinotus sp. n. are described from Dominican amber. The small size, nearly parallel side of the pronotum and silvery sheen distinguish E. argyrosoma from other members of the genus, which has not...
Forty-four specimens of the weevil subfamily Cryptorhynchinae (Coleoptera, Curculionidae) in amber from the Dominican Republic were examined and 30 species are described in four extant and six newly erected genera. Included are descriptions of Anlemmus leptorhinus
n. gen., n sp., Apharosoma euryrhina n. gen., n sp., Episcirrus isolepus n. sp.,...
The following new species of Apioninae weevils (Coleoptera: Brentidae) are described from Dominican amber. Toxorhynchus leptorhinus n. sp., Toxorhynchus robustus n. sp., Toxorhynchus amphioculus n. sp., Toxorhynchus atriartus n. sp., Toxorhynchus atriantenus n. sp. and Toxorhynchus hispanicus n. sp. are members of the Toxorhynchus decoloratum species group. Toxorhynchus microsomus n....
A well preserved specimen of amber Strepsiptera was erroneously described as Stylops neotropicallis Kogan and Poinar, 2010. The taxonomic position of the species was based on a count of 6 antennomeres (typical of the Stylopidae), however, further observations showed that there are actually 7 antennomeres, which places the fossil in...
A new weevil species (urn:lsid:zoobank.org: act:2D5E9E4A-A250-4D0A-AF69-CF4753436686), Pseudopilolabus othnius Poinar, Brown and Legalov, sp. nov. (Coleoptera: Attelabidae), is described from Dominican amber. The new species is close to the extant P. viridanus (Gyllenhal, 1839) and P. splendens (Gyllenhal, 1839) but differs by having a bronzed body, narrower and more convex elytral...
New genera and species of Jumping Ground Bugs (Hemiptera: Schizopteridae) are described in Dominican and Burmese amber. In Dominican amber are described: Hypselosoma dominicana Poinar and Brown sp. n., Schizoptera dominicana Poinar sp. n. and Schizoptera hispaniolae Poinar sp. n. In Burmese amber are described: Lumatibialis burmitis Poinar gen. et...
The Myristicaceae is a member of the early diverging angiosperm order Magnoliales, however the family is poorly represented by fossil collections. We describe Virola dominicana sp. nov. (Myristicaceae), the first record of fossilized Myristicaceae flowers, from mid-Tertiary (45-15 mya) Dominican amber. The description is based on 24 male flowers in...
Two new species of cicada hatchlings in Burmese and Dominican amber are described as Novicicada burmanica n. gen., n. sp. and N. youngi n. gen., n. sp. in the new collective genus Novicicada n. gen. (Hemiptera: Cicadidae). Diagnostic characters of the new genus are an elongate, flattened body, all antennomeres...
The present work shows predatory behavior of the social orb-weaver spider, Geratonephila burmanica n. gen., n. sp. (Araneae: Nephilidae) against a parasitic wasp, Cascoscelio incassa n. gen., n. sp., (Hymenoptera: Platygasteridae) in Early Cretaceous Burmese amber. An adult male and juvenile of Geratonephila burmanica n. gen., n. sp. in the...
Protocylindrocorpus brasiliensis n. sp. (Diplogastroidea: Cylindrocorporidae) associated with the ambrosia beetle, Euplatypus parallelus (F.)(Coleoptera: Curculionidae: Platypodinae) in Para rubber trees (Hevea brasiliensis). Nematropica 00-00.
Protocylindrocorpus brasiliensis n. sp. (Diplogastroidea: Cylindrocorporidae) is described from reproductive stages removed from galleries of the ambrosia beetle, Euplatypus parallelus (F.)(Coleoptera: Curculionidae: Platypodinae) in Para rubber...
A new nematode species, Proparasitylenchus californicus n. sp., is described from the intertidal rove beetle Tarphiota geniculata (Mäklin) (Coleoptera: Staphylinidae) in California, USA. The new species differs from European representatives of the genus by possessing a cleft stylet in both sexes. The parasitic female is ovoviviparous and produces numerous juveniles...
A new genus and species of belid weevils, Pleurambus strongylus Poinar and Legalov, n. gen., n. sp. (Coleoptera: Belidae) in the tribe Allocorynini is described from Dominican amber. Belid fossils are quite rare and the new species is the first fossil member of the family from the Neotropics. This discovery...
A new species of Dryophthorus (Coleoptera:Dryophthoridae) and two new species of Stenommatus (Coleoptera:Dryophthoridae) are described from Dominican amber. D. microtremus n. sp. is characterized by monochrome dorsal scales, nearly parallel sides of the pronotum, wide elytral intervals and the elytral apex only slightly narrowed. S. tanyrhinus n. sp. is characterized...
Since its introduction in France 10 years ago, the yellow-legged Asian bee-hawking hornet Vespa velutina has rapidly spread to neighboring countries (Spain, Portugal, Belgium, Italy, and Germany), becoming a new threat to beekeeping activities. While introduced species often leave behind natural enemies from their original home, which benefits them in...
The purpose of this study was to identify any ostelogical features which might prevent
paradoxical movement (=lateral collapse) of the abdominal air sacs in birds during inhalation.
A combination of 26 fresh and frozen adult bird carcasses representing 10 avian orders were
procured from local sources. Dissections of each specimen...
This study Is a rhetorical analysis of ten documents of Joseph
Smith, Jr's. early revelations spanning the period of 1829 to 1831
to determine the extent to which he used demagogic rhetoric in pursuit
of his goals. A definition of demagoguery is provided and is
applied in an analysis of...
Thin films are an enabling technology for a wide range of applications, from microprocessors to diffusion barriers. Nanolaminate thin films combine two (or more) materials in a layered structure to achieve performance that neither film could provide on its own. Atomic layer deposition (ALD) is a chemical vapor deposition technique...
The Columbia River plume region was investigated during the
period of 20 June to 3 July, 1968 by light scattering measurements
and standard hydrographic station observations. The Columbia
River plume was traced by the light scattering particles of the plume
water. The light scattering particles are estimated to be contained...
Present GEK (Geomagnetic Electrokinetograph) theory is extended
to include internal waves of the lowest mode. The predicted
towed electrode GEK signal is determined to second-order for long-crested
internal waves in a finite but deep ocean. The analysis includes
the determination of GEK signatures for small amplitude and
finite amplitude interfacial...
This study deals primarily with the evaluation and improvement of the content of a college-level drafting course for air conditioning engineering students. The necessity for better integration of the mechanical and architectural elements contained in the course, and an adequate coverage of field drafting room practices were the chief evidences...
We assessed the parasitism of Metaparasitylenchus hypothenemi on its host, the
coffee berry borer, in 20 coffee plantations of Mexico. A total of 23,568 adult
borers were dissected, with 179 of these infected with nematodes (0.76% infection
rate). Although the level of parasitism is not encouraging, the nematode is another...
Parasite distributions fundamentally depend on the distributions of their hosts but may be more restricted than their hosts. Host-parasite symbioses tend to be spatially aggregated, and widely distributed host-parasite relationships are rare. Here, we combine field observations with published collection data to document the current known distribution of the nematode,...
Spider wasps had long been proposed to originate in the mid-Cretaceous based on the Burmese amber fossil Bryopompilus interfector Engel and Grimaldi, 2006. We performed a morphological examination of this fossil and determined it does not belong to Pompilidae or any other described hymenopteran family. Instead, we place it in...
A study was undertaken in Yaquina Bay, Oregon during the
summer of 1964 to determine the distribution and the factors affecting
the distribution of the polychaete worm, Nephtys caecoides,
Hartman, 1938, in the estuary.
This organism has a continuous distribution from offshore to
a point approximately eight kilometers into the...
The circular dichroism spectra of amylose, the maltose
oligomers, cellobiose, and the cycloamyloses are measured in
aqueous solution to 1640 A. Two bands are found in this region. The
long wavelength band is assigned to the ether chromophores; the short
wavelength band is assigned to the hydroxyls and further ether...
Osmotic and ionic regulation was studied in the Dungeness
crab, Cancer magister, after acute exposure to a range of five
salinities from 25% to 125% sea water (100% = 32%). Blood, urine
and muscle tissue were sampled at 24 and 48 hours after exposure.
Analyses were made of blood and...
This case study of the Spokane Valley-Rathdrum Prairie aquifer, deals with the evolution of water quality protection. A number of institutional efforts on multijurisdictional levels
have established a piecemeal approach for this aquifer's protection. Federal legislation includes designation as a 'Sole Source' aquifer under sec. 1424(e) of SDWA, and 1...
The design of a preamplifier for use with a piezoelectric transducer is generally approached from the point of view that an extremely high input impedance is required to obtain low frequency response. However, piezoelectric transducers are essentially charge generators and this fact may be utilized in designing preamplifiers to be...
The Greenstone Mountain area, which includes the Utopia mining
district, is located in the foothills of the Pioneer Range, Beaverhead
County, Montana. Approximately 12, 600 feet of Paleozoic and
Mesozoic sedimentary rocks and an undetermined thickness of Precambrian
sediments and Late Cretaceous igneous rocks are exposed
within the area of...
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, Beaverhead county, Montana
AN ABSTRACT OF THE THESIS OF
GEORGE CARTER SHARP, JR. for the MASTER OF SCIENCE
The purpose of the project was to demonstrate, evaluate, and quantify the effectiveness of Best Management Practices (BMP's) adopted in 1978 (2) by Gilliam, Morrow, Sherman, Umatilla, and Wasco County Soil and Water Conservation Districts
(SWCD's), Oregon (Map 1). These demonstrations and evaluations were designed to reduce landowner uncertainties concerning...
As scaling of silicon (Si) based devices approaches fundamental limits, thin film metal-insulator-metal (MIM) tunnel diodes are attracting interest due to their potential for high speed operation. Because operation of these devices is based on tunneling, electrode / interfacial roughness is critical. Recently, it was shown that combining ultra-smooth bottom...
Remains of parasites in vertebrates are rare from the Mesozoic and Paleozoic. Once most parasites that live in - or pass through - the gastrointestinal tract of vertebrates, fossil feces (coprolites) or even intestinal contents (enterolites) can eventually preserve their remains. Here we announce the discovery of a spiral shark...
This research addressed the opportunity to obtain baseline data for both stream chemistry and soil resources for an intensively managed forest watershed, encompassed by the North and South Forks of Hinkle Creek Watershed Research and Demonstration Area Project near Sutherlin, Oregon. A solid representative database for both stream and soil...
Transparent conductive oxides (TCOs), primarily indium doped tin oxide, have been widely used in numerous fields since decades ago, such as solar cells, displays, OLEDs and ‘smart windows’ etc. Owing to the scarcity of indium, there is a great demand for new alternative materials. Metal/insulator/metal (MIM) diodes are a critical...
The two sulfur isotopomers of sulfur trioxide, ³²S¹⁶O₃ and ³⁴S¹⁶O₃, have been studied via high resolution infrared and Coherent anti-Stokes Raman (CARS) spectroscopy. The v₁ symmetric SO stretching Q-branches observed by the latter are quite different, being especially complex for ³²S¹⁶O₃ Understanding this band structure required analysis of infrared-active hot...
A comparison was made of Al₂O₃ films deposited on Si via prompt inorganic condensation (PIC)
and atomic layer deposition (ALD). Current–voltage measurements as a function of annealing
temperature indicate that the solution-processed PIC films, annealed at 500°C, exhibit lower
leakage and roughly equivalent breakdown strength in comparison to ALD films....
The search for the stand density that optimizes growth and hence generates the maximum amount of wood is one of the philosopher’s stone in modern forestry. Since scientific methods were applied to forestry, numerous generations of foresters have studied the relations between stocking density and growth, obtaining diverse results and...
This study examines a limited number of selected themes in
Judeo-Christian, or Western, religious thought and their implications
for man's use of land, with the objective of discovering the influence
of Western religion on attitudes toward nature and land.
Five themes are examined: dominion of man; stewardship; contempt
for, and...
The modulation transfer function (MTF) of a simple submarine viewing situation is computed as a function of range and sea-water properties. For the cases considered, we found that the MTF follows the simple exponential law, exp(-ω/ω₀), where ω is the spatial frequency in lines/deg and where ω₀ is a complicated...
The apparent optical properties of sea water are a set of measurables that describe the geometry of the submarine light field. These properties are related to the inherent optical properties—the volume attenuation coefficient and the volume scattering function—through the process of radiative transfer. A numerical approximation to the equation of...
Methods have been developed to measure the time required to
complete replication of an adenovirus DNA molecule and the time
between rounds of replication of the viral genomes. These methods
show that 22 minutes are required to complete replication of an
adenovirus DNA molecule at 37° C and that this...
As the effect of ocean acidification (OA) on marine calcifiers is better understood, a range of potential mitigative strategies have been proposed, many of which are plagued by concerns of scale and feasibility. One oft-cited option is to increase the biomass of photosynthetic organisms to remove CO₂ from the water...
The effectiveness of the passive anti-roll tank system aboard
the R/V YAQUINA was determined. Measurements of ship roll,
effective waveslope and tank water transfer were analyzed using a
systems analysis technique. Time series of the inputs and outputs of
the ship/tank system and of the tank itself were processed using...
Air compressor systems are inefficient energy transfer devices even under the best of conditions, at full load. When only part load is required, efficiency drops further. This thesis attempts to improve part load efficiency of twin rotor screw air compressors in three ways.
First, a guidebook was written to help...
In juvenile corrections education approximately 50% of the students are eligible for special education services. This dissertation examines Oregon's juvenile corrections educators' understanding of their role in the special education process. This process involves student referrals, evaluations, and eligibility determination for special education services, and the development of individualized education...
This phenomenological inquiry explored dimensions of reflection for older adults in a developmental oriented adventure education experience. Data were gathered from emergent interviews with four individuals while participating in a multi-day, self-contained experiential education program conducted in a rugged environment, and led by a Navajo leader. Two principle research questions...
The Baculoviridae comprise a diverse group of occluded DNA viruses that contain large double-stranded DNA genomes of 80 - 180 kb and may encode up to 180 gene products. To understand how baculoviruses replicate and process their genomes and the gene products that are involved in these events, a series...
The aim of the research undertaken for this thesis was to develop a new high-performance amorphous oxide semiconductor (AOS) for use as a channel layer in a thin-film transistor (TFT). AOS TFTs offer higher electron mobility than the established amorphous silicon based technology. A new channel material comprised of aluminum...
In the first part of this work, thin films of Al₂O₃ deposited via atomic layer deposition (ALD) are demonstrated to improve the thermal stability of cellulose nanocrystal (CNC) aerogels. ALD is a chemical vapor deposition (CVD) like method in which sequential precursor exposures and self-limited surface reactions produce a conformal...
The diel fluctuations in the abundance of alfalfa weevils, as
measured by sweeping, were studied during 1972 and 1973 in three
of the four major alfalfa growing regions of Oregon. It was found
that in all regions studied significantly more new generation adults
could be captured after dark than during...
Metal-insulator-metal (MIM) tunnel devices have been proposed for high speed applications such as hot electron transistors, IR detectors, optical rectennas for IR energy harvesting, and backplanes for LCDs. The majority of these applications require highly asymmetric and non-linear current versus voltage (I-V) behavior at low applied voltages and ultra-high frequencies....
An instrument was constructed to measure molecular fluorescence (FL) or chemiluminescence (CL) and absorbance (ABS) simultaneously. The lower, middle, and upper portions of the test solution are probed to obtain ABS, FL, and CL data. Optical fibers are used extensively. The ABS and FL or CL spectra are acquired in...
Seven sites of uniform topography and soil were selected within
a self perpetuating ponderosa pine forest found on the eastern
flank of the central Oregon Cascades. These plots were located along
a vegetational gradient caused mainly by an orographic rain shadow.
Data gathered included density, frequency, and cover for all...
Acetylbenzoyl reacted with dimethylamine hydrochloride
and benzaldehyde in primary isoamyl alcohol under
reflux conditions to form 1,4-diphenvl-3-butene-1,2-dione,
compound I, which melted at 56-57°C.
Compound I formed a quinoxaline derivative, compound
II, which melted at 152.5-153°C.
Compound I was cleaved by hydrogen peroxide to form
cinnamic acid, compound III, which melted...
Indole-3-carbinol (I3C) inhibits chemically induced tumor
formation in rodents and rainbow trout. This study examines the
effect of I3C and its analog, indole-3-acetonitrile (I3N) on
xenobiotic-metabolizing enzyme systems. The modulation of these enzyme
systems have been shown to have significant effects on the
interaction of chemical carcinogens and cellular constituents....
Selected parameters that affect crude toxin production in both
primary culture (growing cell culture) and resting culture were
examined during efforts to produce sufficient crude toxin for purification.
The parameters included carbohydrate and label source and
concentration, cell concentration, incubation time and temperature
and shaker speed. A higher yield of...
Detailed analyses of snow crystal sequence and atmospheric
conditions were accomplished utilizing macrophotographic techniques
for obtaining the snow crystal record at Santiam Pass in the Oregon
Cascades on 19-20 January, 14-15 February, and 9-10 March, 1967.
The photographic equipment consisted of a 35 millimeter single lens
reflex camera, bellows, and...
An analytical tool to assist municipal planners in evaluating
alternative planning strategies is proposed. Schlager's Land Use
Plan Design Model provides the linear formulation of the problem,
Goal Programming is used to create alternatives, and Brown and Kirby's
Measures of Urban Performance serve to evaluate the alternatives.
Resource Planning and...