| klebsielleae in drinking water emanating from redwood tanks. | a survey was made of the bacteriological quality and chlorine content of 33 public and private water systems that utilize redwood storage tanks. coliforms of the genera klebsiella and enterobacter were isolated from 9 of 10 private drinking water systems and from 11 of 23 water systems in state and federal parks. total coliform counts in the private systems exceeded federal membrane filter guidelines by as much as 10-to 40-fold. coliform counts were highest in the newer reservoirs. factors contr ... | 1977 | 326189 |
| isolation of klebsielleae from within living wood. | previous studies from this laboratory have documented the presence of coliform bacteria emanating from wooden reservoirs containing finished drinking water. coliforms were identified as klebsiella pneumoniae and enterobacter spp. in the present report, evidence is presented which suggests that the origin of these coliforms is from the wood used to construct the reservoirs. in liquid expressed from freshly cut redwood, total bacterial counts in the range of 10(5) to 10(6)/ml were commonly observe ... | 1978 | 358920 |
| cyclitol utilization associated with the presence of klebsielleae in botanical environments. | bacteria of the tribe klebsielleae are capable of metabolizing the cyclitols myoinositol, sequoyitol, and pinitol, which are present in aqueous extracts of redwood. of the combined klebsiella isolates from clinical and environmental origins, 100% (138/138), 97% (34/35), and 86% (119/138) fermented inositol, sequoyitol, and pinitol, respectively. these compounds were also used as a sole source of carbon and energy by klebsiella. similar results were obtained with enterobacter isolates, but most o ... | 1979 | 485138 |
| gas chromatographic analysis of in situ cyclitol utilization by klebsielleae growing in redwood extracts. | gas chromatographic analysis was employed to demonstrate in situ cyclitol utilization in aqueous extracts of redwood by isolates of klebsiella, enterobacter, and several other genera of gram-negative bacteria. in aqueous redwood extracts, all but one of the klebsiella and enterobacter isolates tested reached densities exceeding 5.0 x 10(6) cells/ml within 4 days, and all utilized pinitol and sequoyitol. other enteric bacteria did not utilize cyclitols in this extract. a defined minimal medium, c ... | 1979 | 539819 |
| skin tests of pollen grains of taxodiaceae and cupressaceae in children with bronchial asthma. | atmospheric cedar pollen in the southern region of okayama prefecture (situated in south-western japan) has been counted since 1988. pollen of different species of the taxodiaceae family (cryptomeria japonica, sequoia sempervirens and metasequoia glyptostroboides) and japanese juniper (juniperus rigida) in the cupressaceae family, which are propagated mainly in the southern region of okayama prefecture, were found among the atmospheric pollen. scratch tests using the pollen extract from taxodiac ... | 1992 | 1442021 |
| purified trichosanthin (glq223) exacerbation of indirect hiv-associated neurotoxicity in vitro. | a formulated preparation of trichosanthin (glq223, pharmaceutical development group, genelabs inc., redwood city, california, usa) has been shown to selectively inhibit hiv replication in vitro in lymphocytes and macrophages. in view of recent anecdotal reports of central nervous system (cns) complications associated with trichosanthin use in some hiv-infected patients, we evaluated any potential drug effects leading to neurotoxicity using a human brain cell aggregate model. brain cell aggregate ... | 1991 | 1786150 |
| water and nonelectrolyte permeability of isolated rat hepatocytes. | we have measured the diffusive permeability coefficients of isolated rat hepatocytes to 3h2o, [14c]urea, [14c]erythritol, [14c]mannitol, [3h]sucrose, and [3h]inulin, employing a technique previously developed for erythrocytes (redwood et al., j. gen. physiol 64:706-729, 1974). diffusion coefficients for the tracer molecules were measured in packed hepatocytes, supernatant fluid, and intracellular medium (lysed hepatocytes) and were calculated assuming one-dimensional semi-infinite diffusion thro ... | 1986 | 2431623 |
| a two-dimensional electrophoresis procedure for single meristems of different forest species. | high resolution two-dimensional electrophoresis, with isoelectric focusing in the first dimension and electrophoresis in sodium dodecyl sulfate in thin acrylamide gels in the second dimension, has been applied to separate the proteins of single meristems (200-300 microns) from sequoiadendron giganteum, sequoia sempervirens, pseudotsuga menziesii, picea abies, pinus pinaster, eucalyptus gunnii and populus nigra. the technique may prove an efficient tool for studying inter- and intraclonal differe ... | 1989 | 2776736 |
| serologic evidence of yersinia pestis infection in small mammals and bears from a temperate rainforest of north coastal california. | from 1983 to 1985, 463 serum samples from 11 species of mammals in redwood national park (rnp) (california, usa) were evaluated for antibodies to yersinia pestis by the passive hemagglutination method. yersinia pestis antibodies occurred in serum samples from 25 (36%) of 69 black bears (ursus americanus), one (50%) of two raccoons (procyon lotor), five (3%) of 170 dusky-footed woodrats (neotoma fuscipes), and one (less than 1%) of 118 deer mice (peromyscus maniculatus). two hundred seventy-three ... | 1989 | 2915403 |
| sequoiosis. a granulomatous pneumonitis associated with redwood sawdust inhalation. | | 1967 | 6054842 |
| estimation of serum alpha 2-macroglobulin based on the esterolytic activity of bound alpha-chymotrypsin. | a colorimetric method to estimate alpha 2-macroglobulin (mg) in human serum is described which is based on the capacity of mg:alpha-chymotrypsin complex to hydrolyze n-acetyl l-tyrosine ethyl ester in the presence of excess crude preparation of a trypsin/chymotrypsin inhibitor from redwood seed. acetyltyrosine formed was measured using folin's reagent (7). the method was found to be as reliable as, but at least five times more sensitive than the procedures described using trypsin and soybean try ... | 1984 | 6083782 |
| otitis due to pseudomonas aeruginosa serotype 0:10 associated with a mobile redwood hot tub system--north carolina. | | 1982 | 6817053 |
| a simple technique of measuring high membrane permeabilities of human erythrocytes. | a new way of measuring high diffusional membrane permeabilities of intact erythrocytes is presented using tho and 14c-glycol as test solutes. the technique combines the theoretical approach used by redwood, rall and perl (j. gen. physiol. 64:706-729, 1974) and an experimental procedure introduced by wang (j. am. chem. soc. 73:510-513, 1951), which greatly simplifies the performance of the experiments. permeability coefficients obtained by the new technique compare well to data derived by the app ... | 1982 | 7108941 |
| permeability of novikoff hepatoma cells to water and monohydric alcohols. | the permeability coefficients of novikoff hepatoma ascites cell membranes for tritiated water (3hho) and for a homologous series of monohydric alcohols (methanol through hexanol) were deduced from linear diffusion coefficients by means of a series-parallel pathway model (redwood et al. (1974) j. gen. physiol. 64, 706-729). membrane permeability coefficients for 3hho at 20, 30 and 37 degrees c were (all x 10(-5)) 97, 125, and 163 cm . s-1, respectively, and were significantly smaller than the cor ... | 1981 | 7225379 |
| [biological effect of wood dust]. | the biological effect of exposure to wood dust depends on its composition and the content of microorganisms which are an inherent element of the dust. the irritant and allergic effects of wood dust have been recognised for a long time. the allergic effect is caused by the wood dust of subtropical trees, e.g. western red cedar (thuja plicata), redwood (sequoia sempervirens), obeche (triplochiton scleroxylon), cocabolla (dalbergia retusa) and others. trees growing in the european climate such as: ... | 1993 | 8231799 |
| location of smooth-muscle myosin and tropomyosin binding sites in the c-terminal 288 residues of human caldesmon. | we have produced nine recombinant fragments, h1 to h9, from a human cdna that codes for the c-terminal 288 residues of caldesmon. the fragment h1, encompassing the 288 residues, is equivalent to domains 3 and 4 of caldesmon (amino acids 506-793 in human, 476-737 in the chicken gizzard sequence). it has been shown [huber, redwood, avent, tanner and marston (1993) j. muscle res. cell motil. 14, 385-391] to bind to actin, ca(2+)-calmodulin, tropomyosin and myosin. the fragments, h2 to h9, differ in ... | 1995 | 8526878 |
| port-access coronary artery bypass grafting: a proposed surgical method. | minimally invasive surgical methods have been developed to provide patients the benefits of open operations with decreased pain and suffering. we have developed a system that allows the performance of cardiopulmonary bypass and myocardial protection with cardioplegic arrest without sternotomy or thoracotomy. in a canine model, we successfully used this system to anastomose the internal thoracic artery to the left anterior descending coronary artery in nine of 10 animals. the left internal thorac ... | 1996 | 8601971 |
| earlens tympanic contact transducer: a new method of sound transduction to the human ear. | this article is an initial report on a new method of transducing sound to the human ear. the report describes the shortcomings of conventional acoustic amplification devices, the potential advantages afforded by the earlens system (resound corp., redwood city, calif.), a description of the system, and preliminary clinical results. the system is composed of two elements: a transducer that is composed of a magnet mounted on a thin, conical silicone platform and a device that generates a magnetic f ... | 1996 | 8643293 |
| port-access mitral valve replacement in dogs. | the objective was to assess mitral valve replacement in a minimally invasive fashion by means of port-access technology. | 1996 | 8911323 |
| minimally invasive mitral valve replacement: port-access technique, feasibility, and myocardial functional preservation. | this experiment examined the feasibility of minimally invasive port-access mitral valve replacement via a 2.5 cm incision. | 1997 | 9202682 |
| single and multivessel port-access coronary artery bypass grafting with cardioplegic arrest: technique and reproducibility. | although minimally invasive coronary artery bypass grafting is now feasible, using this technique to perform anastomoses on the beating or fibrillating heart may yield poorer graft patency than the standard open techniques that use cardioplegic arrest. this study tested the feasibility and anastomotic reproducibility of minimally invasive coronary bypass using newly developed port-access coronary artery bypass technology (heartport, inc., redwood city, calif.), which allows endovascular cardiopu ... | 1997 | 9240293 |
| use of the voice-controlled and computer-assisted surgical system zeus for endoscopic coronary artery bypass grafting. | with the aim of performing a completely endoscopic coronary bypass anastomosis, we have undertaken an experimental and clinical study using robotic instrumentation and voice-controlled camera guidance. | 1999 | 10384178 |
| early experience with robotic technology for coronary artery surgery. | to achieve an endoscopic coronary bypass anastomoses we performed a study with endoscopic robotic instrumentation and camera guidance using three-dimensional (3-d) visualization. | 1999 | 10543565 |
| an automated interrupted suturing device for coronary artery bypass grafting: automated coronary anastomosis. | the purpose of this study was to have a preliminary assessment of the safety and efficacy of an automated vascular suturing device. | 2000 | 11016372 |
| computer-enhanced "robotic" cardiac surgery: experience in 148 patients. | a computer-enhanced instrumentation system was used in 148 patients to minimize access in cardiac surgical procedures. | 2001 | 11326227 |
| sequoiatones a and b: novel antitumor metabolites isolated from a redwood endophyte. | sequoiatones a and b were isolated from the fungus aspergillus parasiticus, an endophytic fungus of the coast redwood, sequoia sempervirens. the compounds were isolated from the methanol extract of the mycelial mat of the fungus when grown in liquid culture for 21 days. the compounds were isolated because of their brine shrimp lethality, which served as an excellent guide for chromatographic purification. full details of the isolation and characterization of sequoiatones a and b are provided her ... | 1999 | 11674610 |
| sequoiatones c-f, constituents of the redwood endophyte aspergillus parasiticus. | aspergillus parasiticus, a fungal isolate from a coast redwood tree (sequoia sempervirens), has been shown to produce four new compounds, sequoiatones c-f (1-4). the structures of these compounds, all of which are cytotoxic to brine shrimp, were deduced by spectral analysis. | 2001 | 11678666 |
| seasonal activity patterns of ixodes pacificus nymphs in relation to climatic conditions. | in western north america, the tick ixodes pacificus cooley & kohls (acari: ixodidae) is the primary vector to humans and domestic animals of the disease agents causing lyme disease and granulocytic ehrlichiosis. we examined the seasonal activity patterns of i. pacificus nymphs over a 4-year period, including the wet and cold el niño winter/spring of 1998, in a dry oak/madrone woodland, and for one year in a cooler and moister redwood/tanoak woodland in mendocino county, california. linear regres ... | 2002 | 12243224 |
| sequoiamonascins a-d: novel anticancer metabolites isolated from a redwood endophyte. | aspergillus parasiticus, a fungal isolate from the bark of a redwood tree (sequoia sempervirens), has been shown to produce the antitumor metabolites sequoiatones a and b and more recently the sequoiatones c-f. we have also isolated another series of compounds with a new carbon skeleton, the sequoiamonascins. the structures of sequoiamonascins a-d were deduced by interpretation of their spectral data and that of some reaction products. the sequoiamonascins were isolated by brine shrimp lethality ... | 2003 | 12790612 |
| the yeast flora of the coast redwood, sequoia sempervirens. | only four yeast species could be isolated from young and perannual shoots of the coast redwood tree, sequoia sempervirens, and from soil beneath the trees, viz. both varieties of debaryomyces hansenii, trichosporon pullulans, t. porosum and an unidentified red basidiomycetous yeast. | 2003 | 12879747 |
| physiological differences between interstitial glucose and blood glucose measured in human subjects. | this study investigated whether glucose readings from a sensor sampling in interstitial fluid differ substantially from blood glucose (bg) values measured at the same time. | 2003 | 12882870 |
| the potential for bronchoscopic lung volume reduction using bronchial prostheses: a pilot study. | significant morbidity and mortality offset the benefits of lung volume reduction surgery (lvrs) for emphysema. by contributing to distal lung collapse, bronchoscopic placement of valved prostheses has the potential to noninvasively replicate the beneficial effects of lvrs. the purpose of this study was to investigate the safety and feasibility of placing valves in segmental airways of patients with emphysema. | 2003 | 12970040 |
| elevated personal exposure to particulate matter from human activities in a residence. | continuous laser particle counters collocated with time-integrated filter samplers were used to measure personal, indoor, and outdoor particulate matter (pm) concentrations for a variety of prescribed human activities during a 5-day experimental period in a home in redwood city, ca, usa. the mean daytime personal exposures to pm(2.5) and pm(5) during prescribed activities were 6 and 17 times, respectively, as high as the pre-activity indoor background concentration. activities that resulted in t ... | 2004 | 15118743 |
| the effect of opening windows on air change rates in two homes. | more than 300 air change rate experiments were completed in two occupied residences: a two-story detached house in redwood city, ca, and a three-story townhouse in reston, va. a continuous monitor was used to measure the decay of sf6 tracer gas over periods of 1-18 hr. each experiment first included a measurement of the air change rate with all exterior doors and windows closed (state 0), then a measurement with the single change from state 0 conditions of opening one or more windows. the overal ... | 2002 | 15143789 |
| a preliminary assessment of the montreal process indicators of air pollution for the united states. | air pollutants pose a risk to forest health and vitality in the united states. here we present the major findings from a national scale air pollution assessment that is part of the united states' 2003 report on sustainable forests. we examine trends and the percent forest subjected to specific levels of ozone and wet deposition of sulfate, nitrate, and ammonium. results are reported by resource planning act (rpa) reporting region and integrated by forest type using multivariate clustering. estim ... | 2004 | 15195820 |
| effect of a lignin-degrading fungus on feeding preferences of formosan subterranean termite (isoptera: rhinotermitidae) for different commercial lumber. | the feeding preferences of the formosan subterranean termite, coptotermes formosanus shiraki, for commercial lumber alaska yellow cedar, chamaecyparis nootkatensis (d. don) spach; yellow birch, betula alleghaniensis britton; northern red oak, quercus rubra l.; redwood, sequoia sempervirers (d. don) endl; and spruce (picea spp.) were examined to determine whether the presence of the lignin-degrading basidiomycete marasmiellus troyanus (murrill) singer could alter the relative preference of termit ... | 2004 | 15279287 |
| gene expression profiling of cultured human islet preparations. | the expression of functional and regulatory genes by islet cells is a key determinant for the success of islet transplantation. the aim of this study is twofold: first, to characterize the cluster of genes expressed in human islet isolations; and second, to validate the capability of gene array technology to assess with accuracy the expression of various transcripts. rna from isolated islet preparations obtained from three independent donors was converted to cdna and then transcribed to crna. in ... | 2004 | 15321003 |
| habitat-related variation in infestation of lizards and rodents with ixodes ticks in dense woodlands in mendocino county, california. | during the spring and early summer of 2002, we examined the relative importance of borrelia-refractory lizards (sceloporus occidentalis, elgaria spp.) versus potential borrelia burgdorferi sensu lato (s.l.)-reservoirs (rodents) as hosts for ixodes pacificus immatures in 14 woodland areas (six oak, five mixed oak/douglas fir, and three redwood/tanoak areas) distributed throughout mendocino county, california. lizards were estimated to serve as hosts for 93-98% of all larvae and > or =99.6% of all ... | 2004 | 15347025 |
| the cochlear amplifier as a standing wave: "squirting" waves between rows of outer hair cells? | this paper draws attention to symmetric lloyd-redwood (slr) waves-known in ultrasonics as "squirting" waves-and points out that their distinctive properties make them well-suited for carrying positive feedback between rows of outer hair cells. this could result in standing-wave resonance-in essence a narrow-band cochlear amplifier. based on known physical properties of the cochlea, such an amplifier can be readily tuned to match the full 10-octave range of human hearing. slr waves propagate in a ... | 2004 | 15376668 |
| anti-tumor abietane diterpenes from the cones of sequoia sempervirens. | a new abietane, namely, 20-hydroxyferruginol (1), together with known ferruginol (2), 18-hydroxyferruginol (3), sugiol (4), and 6alpha-hydroxysugiol (5), were isolated from the cones of sequoia sempervirens. their structures were elucidated through spectral data. compounds 1 and 5 strongly inhibited colon, lung, and breast human tumors and oncogene transformed cells with gi(50) 2-5 microg/ml. | 2005 | 15808460 |
| gis-facilitated spatial epidemiology of tick-borne diseases in coyotes (canis latrans) in northern and coastal california. | ixodes pacificus is the main tick vector for transmission of anaplasma phagocytophilum and borrelia burgdorferi to large vertebrates in california. the present study was undertaken in i. pacificus-infested counties in california to examine spatial and temporal relationships among a. phagocytophilum and b. burgdorferi-exposed coyotes with vegetation type and climate. the overall a. phagocytophilum and b. burgdorferi seroprevalences were 39.5% (n=215) and 18.9% (n=148), respectively, with no assoc ... | 2005 | 15857659 |
| vessel wall damage caused by cerebral protection devices: ex vivo evaluation in porcine carotid arteries. | to determine the extent of vessel wall damage caused by cerebral protection devices designed for carotid angioplasty by using ex vivo porcine carotid arteries. | 2005 | 15858088 |
| healthcare, molecular tools and applied genome research. | biotechnology 2000 offered a rare opportunity for scientists from academia and industry to present and discuss data in fields as diverse as environmental biotechnology and applied genome research. the healthcare section of the meeting encompassed a number of gene therapy delivery systems that are successfully treating genetic disorders. beta-thalassemia is being corrected in mice by continous erythropoeitin delivery from engineered muscles cells, and from naked dna electrotransfer into muscles, ... | 2000 | 16047247 |
| surface-enhanced raman spectroscopy of bacteria and pollen. | a technique for distinguishing biological material based on surface-enhanced raman scattering (sers) is reported in this work. of particular interest is biological material that can be airborne. silver colloidal particles with diameters in the range 10 to 20 nm and with a characteristic ultraviolet-visible (uv-vis) absorption band at 400 nm were used to obtain sers spectra of escherichia coli, pseudomonas aeruginosa, and salmonella typhimurium bacteria and a number of tree and grass pollens (cup ... | 2005 | 16105210 |
| modulation of nuclear factor e2-related factor 2-mediated gene expression in mice liver and small intestine by cancer chemopreventive agent curcumin. | curcumin has been shown to prevent and inhibit carcinogen-induced tumorigenesis in different organs of rodent carcinogenesis models. our objective is to study global gene expression profiles elicited by curcumin in mouse liver and small intestine as well as to identify curcumin-regulated nuclear factor e2-related factor 2 (nrf2)-dependent genes. wild-type c57bl/6j and nrf2 knockout c57bl/6j/nrf2(-/-) mice were given a single oral dose of curcumin at 1,000 mg/kg. liver and small intestine were co ... | 2006 | 16432161 |
| geographical distribution patterns and habitat suitability models for presence of host-seeking ixodid ticks in dense woodlands of mendocino county, california. | we used drag sampling to examine the geographical distribution patterns of ixodid ticks engaging in open (non-nidicolous) host-seeking behavior in dense woodland habitats of the climatically and ecologically diverse mendocino county in north coastal california. the findings based on this sampling methodology reflect risk of human exposure to host-seeking ticks rather than the true distribution of the ticks. drag sampling in 78 sites yielded 7,860 nymphal or adult ixodes pacificus cooley & kohls, ... | 2006 | 16619628 |
| sylvatic maintenance of borrelia burgdorferi (spirochaetales) in northern california: untangling the web of transmission. | lyme borreliosis is associated with several genospecies of borrelia burgdorferi sensu lato (s.l.) (spirochaetales), but human disease has been associated only with borrelia burgdorferi sensu stricto (s.s.) johnson, schmid, hyde, steigerwalt & brenner in the western united states. restriction fragment length polymorphism (rflp) analysis of rrf-rrl amplicons from 124 tick and mammalian isolates from various habitats yielded 13 rflp patterns. of these patterns, six were patterns previously associat ... | 2006 | 16892634 |
| isoginkgetin inhibits tumor cell invasion by regulating phosphatidylinositol 3-kinase/akt-dependent matrix metalloproteinase-9 expression. | matrix metalloproteinase (mmp)-9 plays a key role in tumor invasion. inhibitors of mmp-9 were screened from metasequoia glyptostroboides (dawn redwood) and one potent inhibitor, isoginkgetin, a biflavonoid, was identified. noncytotoxic levels of isoginkgetin decreased mmp-9 production profoundly, but up-regulated the level of tissue inhibitor of metalloproteinase (timp)-1, an inhibitor of mmp-9, in ht1080 human fibrosarcoma cells. the major mechanism of ras-dependent mmp-9 production in ht1080 c ... | 2006 | 17121913 |
| norlignans from sequoia sempervirens. | six new norlignans, named sequosempervirins b-g (1-6), together with three known norlignans, agatharesinol (7), agatharesinol acetonide (8), and sugiresinol (9), were isolated from the branches and leaves of sequoia sempervirens. their structures were determined mainly by high-resolution mass spectroscopy (hr-ms), and various 1d- and 2d-nmr methods, as well as, in the case of 1, by means of x-ray diffraction. compound 8 showed anticancer activity towards the a549 non-small-cell lung-cancer cell ... | 2005 | 17191998 |
| bioaerosol detection and characterization by surface-enhanced raman spectroscopy. | instrumentation has been developed to detect and characterize airborne pollen and bacteria rapidly by injecting a bioaerosol into a nanocolloidal suspension of silver particles using a micropump. the biological particles were mixed with the silver colloid in order to deposit the metallic particles on the surface of the bioanalyte. the silver/bioanalyte suspension was pumped through a light scattering cuvette, and the enhanced raman spectrum was recorded. surface-enhanced raman spectra are presen ... | 2007 | 17362975 |
| transcriptional profiling of mucociliary differentiation in human airway epithelial cells. | when cultured at an air-liquid interface (ali) in the appropriate medium, primary human airway epithelial cells form a polarized, pseudostratified epithelium composed of ciliated and mucus-secreting cells. this culture system provides a useful tool for the in vitro study of airway epithelial biology and differentiation. we have performed microarray analysis on ali cultures of human bronchial epithelial cells (hbecs) grown over a 28-d period to identify genes involved in mucociliary differentiati ... | 2007 | 17413031 |
| modulation of tgf-beta signaling by proinflammatory cytokines in articular chondrocytes. | the normal structure and function of articular cartilage are the result of a precisely balanced interaction between anabolic and catabolic processes. the transforming growth factor-beta (tgf-beta) family of growth factors generally exerts an anabolic or repair response; in contrast, proinflammatory cytokines such as interleukin 1 beta (il-1beta) and tumor necrosis factor-alpha (tnf-alpha) exert a strong catabolic effect. recent evidence has shown that il-1beta, and tnf-alpha, and the tgf-beta si ... | 2007 | 17604656 |
| effectiveness of porous covers for control of ammonia, reduced sulfur compounds, total hydrocarbons, selected volatile organic compounds, and odor from hog manure storage lagoons. | anaerobic lagoons are a major source of odor at concentrated animal feeding operations. seven different kinds of artificial (geotextile and polyethylene foam) and natural (straw and redwood) permeable lagoon covers were evaluated for their potential to reduce odorous emissions generated by anaerobic waste lagoons. a novel floating sampling raft was constructed and used to simultaneously evaluate the effectiveness of lagoon covers on an operating swine waste lagoon. the air collected from the raf ... | 2007 | 17608010 |
| direct marine-continental correlation: 150,000-year oxygen isotope--pollen record from the north pacific. | core y72 ii i (43 degrees 15'n, 126 degrees 22'w) contains sediment of oxygen isotope stages i through 6 (substages 5a through 5e are well developed) and abundant pollen from the nearby continent, enabling us for the first time to obtain a direct marine-continental correlation of events in the last interglacial sensu lato. from stage 6 to substage 5e the vegetational record resembles that during the waning of the last glacial. during substage 5e, after a rapid increase of alder, western hemlock ... | 1979 | 17730526 |
| preservation of coast redwood on alluvial flats: because man has altered the environment, active management is now required. | | 1968 | 17792349 |
| first-in-man implantation of left ventricular partitioning device in a patient with chronic heart failure: twelve-month follow-up. | the ventricular partitioning device (vpd) (cardiokinetix inc., redwood city, calif) is a novel device that is deployed percutaneously in the left ventricle in patients with anteroapical regional wall motion abnormalities after a myocardial infarction (mi) to partition the ventricle and segregate the dysfunctional region. in this case report we present the first implantation of the vpd in a human, with a 12-month efficacy and safety follow-up. | 2007 | 17826641 |
| antimicrobial activity of extractable conifer heartwood compounds toward phytophthora ramorum. | ethyl acetate extracts from heartwood of seven western conifer trees and individual volatile compounds in the extracts were tested for antimicrobial activity against phytophthora ramorum. extracts from incense and western redcedar exhibited the strongest activity, followed by yellow-cedar, western juniper, and port-orford-cedar with moderate activity, and no activity for douglas-fir and redwood extracts. chemical composition of the extracts varied both qualitatively and quantitatively among the ... | 2007 | 17929093 |
| differential effects of in vitro zinc treatment on gene expression in peripheral blood mononuclear cells derived from young and elderly individuals. | mild zinc deficiency, which is prevalent in vegetarians, diseased individuals, and the general aging population, depresses immunity and increases risk of disease in later life. however, human zinc intervention trials have produced conflicting results, perhaps because many of these trials included young or zinc-sufficient subjects. since heterogeneity of the adult population may impact on response to dietary zinc, nutrigenomic approaches aimed at understanding the impact of zinc on modulation of ... | 2007 | 17985944 |
| comparison of four energy-based vascular sealing and cutting instruments: a porcine model. | to compare the safety and efficacy of four energy-based vascular sealing and cutting instruments. | 2008 | 18097720 |
| disease associated with integumentary and cloacal parasites in tadpoles of northern red-legged frog rana aurora aurora. | a total of 6830 northern red-legged frog rana aurora aurora tadpoles were examined under a dissecting microscope for oral disc, integumentary, and cloacal abnormalities in 13 ponds in and near redwood national park in northern california. of these, 163 tadpoles were collected for histopathological investigation, including 115 randomly collected individuals, 38 collected with oral disc abnormalities, and 10 collected due to severe morbidity of unknown etiology. the tadpoles were infected with 8 p ... | 2007 | 18159674 |
| pathway-based association analysis of genome-wide screening data suggest that genes associated with the gamma-aminobutyric acid receptor signaling pathway are involved in neuroleptic-induced, treatment-resistant tardive dyskinesia. | neuroleptic-induced tardive dyskinesia (td) is an involuntary movement disorder that develops in patients who have undergone long-term treatment with antipsychotic medications, and its etiology is unclear. in this study, a genome-wide association screening was done to identify the pathway(s) in which genetic variations influence susceptibility to neuroleptic-induced td. | 2008 | 18334916 |
| twelve-month patency with the pas-port proximal connector device: a single center prospective randomized trial. | the pas-port (cardica inc, redwood city, ca) is an automated system that allows for the clampless anastomosis of vein grafts to the aorta. the intent of this study was to prospectively compare one year graft patency of this system with conventional hand-sewn anastomoses in a prospective, randomized trial. | 2008 | 18442542 |
| anaplasma phagocytophilum infection in small mammal hosts of ixodes ticks, western united states. | a total of 2,121 small mammals in california were assessed for anaplasma phagocytophilum from 2006 through 2008. odds ratios were >1 for 4 sciurids species and dusky-footed woodrats. high seroprevalence was observed in northern sites. ten tick species were identified. heavily infested rodent species included meadow voles, woodrats, deer mice, and redwood chipmunks. | 2008 | 18598645 |
| suitability of pines and other conifers as hosts for the invasive mediterranean pine engraver (coleoptera: scolytidae) in north america. | the invasive mediterranean pine engraver, orthotomicus erosus (wollaston) (coleoptera: scolytidae), was detected in north america in 2004, and it is currently distributed in the southern central valley of california. it originates from the mediterranean region, the middle east, and asia, and it reproduces on pines (pinus spp.). to identify potentially vulnerable native and adventive hosts in north america, no-choice host range tests were conducted in the laboratory on 22 conifer species. the bee ... | 2008 | 18613584 |
| midterm outcome predictors for lower extremity atherectomy procedures. | the performance of atherectomy devices has been variable. the purpose of this study was to evaluate our experience using the silverhawk atherectomy (fox hollow technologies, redwood city, calif) device for lower extremity procedures to determine predictors of midterm success. | 2008 | 18692354 |
| sources of inoculum for phytophthora ramorum in a redwood forest. | abstract sources of inoculum were investigated for dominant hosts of phytophthora ramorum in a redwood forest. infected trunks, twigs, and/or leaves of bay laurel (umbellularia californica), tanoak (lithocarpus densiflorus), and redwood (sequoia sempervirens) were tested in the laboratory for sporangia production. sporangia occurred on all plant tissues with the highest percentage on bay laurel leaves and tanoak twigs. to further compare these two species, field measurements of inoculum producti ... | 2008 | 18943203 |
| detection, distribution, sporulation, and survival of phytophthora ramorum in a california redwood-tanoak forest soil. | abstract recovery of phytophthora ramorum from soils throughout sudden oak death-affected regions of california illustrates that soil may serve as an inoculum reservoir, but the role of soil inoculum in the disease cycle is unknown. this study addresses the efficacy of soil baiting, seasonal pathogen distribution under several epidemiologically important host species, summer survival and chlamydospore production in soil, and the impact of soil drying on pathogen survival. the efficacy of rhodode ... | 2007 | 18943696 |
| histopathology and host range studies of the redwood nematode rhizonema sequoiae. | second-stage larvae of rehizonma sequoiae cid del prado vera et al. tunnel through the cortex of the redwood sequoia sempervirens (d. don) endl. root to the vascular tissue where each developing female induces a single ovoid or occasionally spherical giant cell with a single ovoid to spherical nucleus containing one to four enlarged nucleoli. nematode tunnels are filled with a gel material and often contain second-stage larvae and males. there is tissue necrosis around females, and cortical tiss ... | 1984 | 19295877 |
| reservoir competence of the redwood chipmunk (tamias ochrogenys) for anaplasma phagocytophilum. | granulocytic anaplasmosis (ga) is an emerging tick-transmitted disease that persists in rodent- ixodes ricinus-complex tick cycles across the holarctic. although the putative reservoir for anaplasmosis in the western united states is the dusky-footed woodrat (neotoma fuscipes), this rodent was not shown reservoir-competent because of failure of infection from woodrats to other animals via ticks. redwood chipmunks are common in habitats where anaplasma phagocytophilum is common, have high pcr- an ... | 2009 | 19327022 |
| survival, dispersal, and potential soil-mediated suppression of phytophthora ramorum in a california redwood-tanoak forest. | because the role of soil inoculum of phytophthora ramorum in the sudden oak death disease cycle is not well understood, this work addresses survival, chlamydospore production, pathogen suppression, and splash dispersal of the pathogen in infested forest soils. colonized rhododendron and bay laurel leaf disks were placed in mesh sachets before transfer to the field in january 2005 and 2006. sachets were placed under tanoak, bay laurel, and redwood at three vertical locations: leaf litter surface, ... | 2009 | 19351257 |
| evidence for thyroid endocrine disruption in wild fish in san francisco bay, california, usa. relationships to contaminant exposures. | it is well documented that many coastal and estuarine environments adjacent to developed and industrialized urban centers, such as the san francisco bay area, are significantly contaminated by anthropogenic chemicals. however, it is not well understood to what extent existing contaminants, many with continuing inflows into the environment, may impact exposed wildlife. this study provided an initial characterization of thyroid endocrine-related effects and their relationship to accumulated contam ... | 2010 | 19939474 |
| emergence of tick-borne granulocytic anaplasmosis associated with habitat type and forest change in northern california. | an important ecosystem service of intact forests is protection from some emerging infectious diseases. tick-transmitted disease granulocytic anaplasmosis increasingly occupies second-growth forest. we hypothesized that areas of second growth would have increases in tick and rodent abundance, facilitating emergence of anaplasmosis. we predicted anaplasma phagocytophilum presence as a function of biocomplexity and forest structure, including vegetation, ticks, and rodents in four sites in californ ... | 2009 | 19996448 |
| a method of detecting carbonyl compounds in tree leaves in china. | background, aim, and scope: carbonyl compounds have been paid more and more attention because some carbonyl species have been proven to be carcinogenic or a risk for human health. plant leaves are both an important emission source and an important sink of carbonyl compounds. but the research on carbonyl compounds from plant leaves is very scarce. in order to make an approach to the emission mechanism of plant leaves, a new method was established to extract carbonyl compounds from fresh plant lea ... | 2010 | 20016999 |
| deep phylogeny--how a tree can help characterize early life on earth. | the darwinian concept of biological evolution assumes that life on earth shares a common ancestor. the diversification of this common ancestor through speciation events and vertical transmission of genetic material implies that the classification of life can be illustrated in a tree-like manner, commonly referred to as the tree of life. this article describes features of the tree of life, such as how the tree has been both pruned and become bushier throughout the past century as our knowledge of ... | 2010 | 20182607 |
| apparent competition in canopy trees determined by pathogen transmission rather than susceptibility. | epidemiological theory predicts that asymmetric transmission, susceptibility, and mortality within a community will drive pathogen and disease dynamics. these epidemiological asymmetries can result in apparent competition, where a highly infectious host reduces the abundance of less infectious or more susceptible members in a community via a shared pathogen. we show that the exotic pathogen phytophthora ramorum and resulting disease, sudden oak death, cause apparent competition among canopy tree ... | 2010 | 20391996 |
| a spatially-explicit model of acarological risk of exposure to borrelia burgdorferi-infected ixodes pacificus nymphs in northwestern california based on woodland type, temperature, and water vapor. | in the far-western united states, the nymphal stage of the western black-legged tick, ixodes pacificus, has been implicated as the primary vector to humans of borrelia burgdorferi sensu stricto (hereinafter referred to as b. burgdorferi), the causative agent of lyme borreliosis in north america. in the present study, we sought to determine if infection prevalence with b. burgdorferi in i. pacificus nymphs and the density of infected nymphs differ between dense-woodland types within mendocino cou ... | 2010 | 20532183 |
| host adaptive immunity deficiency in severe pandemic influenza. | pandemic a/h1n1/2009 influenza causes severe lower respiratory complications in rare cases. the association between host immune responses and clinical outcome in severe cases is unknown. | 2010 | 20840779 |
| forest type influences transmission of phytophthora ramorum in california oak woodlands. | the transmission ecology of phytophthora ramorum from bay laurel (umbellularia californica) leaves was compared between mixed-evergreen and redwood forest types throughout winter and summer disease cycles in central, coastal california. in a preliminary multisite study, we found that abscission rates of infected leaves were higher at mixed-evergreen sites. in addition, final infection counts were slightly higher at mixed-evergreen sites or not significantly different than at redwood sites, in pa ... | 2011 | 21391827 |
| effects of organic and inorganic dietary selenium supplementation on gene expression profiles in oviduct tissue from broiler-breeder hens. | selenium (se) is an essential component of at least 25 selenoproteins involved in a multitude of physiological functions, including reproduction. however, relatively little is known about the mechanisms by which se exerts its physiological effects in reproductive tissue. the objective of this study was to compare the effect of long-term inorganic se (sodium selenite, ss) and organic yeast-derived se (sel-plex(®), sp) supplementations on tissue se content and gene expression patterns in the ovidu ... | 2011 | 21511415 |
| transpiration of urban forests in the los angeles metropolitan area. | despite its importance for urban planning, landscape management, and water management, there are very few in situ estimates of urban-forest transpiration. because urban forests contain an unusual and diverse mix of species from many regions worldwide, we hypothesized that species composition would be a more important driver of spatial variability in urban-forest transpiration than meteorological variables in the los angeles (california, usa) region. we used constant-heat sap-flow sensors to moni ... | 2011 | 21639035 |
| the ecology of tick-transmitted infections in the redwood chipmunk (tamias ochrogenys). | the redwood chipmunk contributes to the maintenance of tick-borne diseases in northern california. the range of redwood chipmunks overlaps that of western black-legged ticks and tick-borne disease, including granulocytic anaplasmosis and lyme borreliosis. chipmunks have high anaplasma phagocytophilum pcr- and seroprevalence, are infested with a diversity of ixodes spp. ticks, and are reservoir competent for borrelia burgdorferi. we hypothesized that chipmunks could maintain tick-borne disease on ... | 2011 | 21643481 |
| correlation between arterial fdg uptake and biomarkers in peripheral artery disease. | a prospective, multicenter (18)fluorine-fluorodeoxyglucose ((18)f-fdg) positron emission tomography (pet)/computed tomography (ct) imaging study was performed to estimate the correlations among arterial fdg uptake and atherosclerotic plaque biomarkers in patients with peripheral artery disease. | 0 | 22239891 |
| percutaneous thoracic endovascular aortic repair is not contraindicated in obese patients. | there are limited data describing the preclose technique with the perclose proglide device (abbott vascular, redwood city, calif) in percutaneous thoracic endovascular aortic repair (p-tevar), particularly in obese patients, in whom use of this technique is thought to be relatively contraindicated. the purpose of this analysis was to describe our experience with p-tevar and to compare outcomes in patients with or without obesity. | 2014 | 24845111 |
| citizen scientists monitor a deadly fungus threatening amphibian communities in northern coastal california, usa. | ecoclub youth and supervising family members conducted citizen science to assess regional prevalence and distribution of batrachochytrium dendrobatidis (bd) among amphibians at humboldt bay national wildlife refuge (refuge) and redwood national and state parks (parks), humboldt county, california, us, may 2013 through december 2014. using quantitative real-time pcr, 26 (17%) of 155 samples were positive for bd. positive samples occurred in four frog and toad species: foothill yellow-legged frog ... | 2016 | 27195681 |
| effect of nonhost cultivars on heterodera schachtii population dynamics. | broadcast plantings of nonhost cultivars (alfalfa, barley, bean, onion, potato, and wheat) in soil in redwood boxes (4.2 x 30 x 14 cm) infested with heterodera schachtii reduced the initial nematode populations (p = 0.05). the reduction was greater with sugarbeets, a host, than with all other cropping treatments except onion, bean, and fallow (p = 0.05). after 80 days, when the root growth of all treatments had completely penetrated the soil, the nematode population was lower under onion than un ... | 1980 | 19300671 |
| designing the ideal habitat for entomopathogen use in nursery production. | greenhouse and nursery producers use entomopathogens (nematodes and fungi) to control soil pests. although it is known that the physical and chemical properties of mineral soil significantly impact upon soil pathogens, the influence of soilless media used for plant production on entomopathogen performance is poorly understood. | 2012 | 22371424 |
| postembryonic development of the redwood nematode, rhizonema sequoiae (nemata: heteroderidae). | second-stage larvae of rhizonema sequoiae cid del prado vera et al. developed into adult females in 6 months or adult males in 3 - 4 months on roots of sequoia sempervirens maintained in a growth chamber at 16 c with a 12-hour light period. under these conditions the second-stage larvae increased in diameter, the central cells of the genital primordium increased in size, and their nuclei enlarged. mesenchymal cells accumulated in the esophageal and tail regions. second-stage larvae become third- ... | 1984 | 19295878 |
| rhizonema sequoiae n.gen. n.sp. from coast redwood sequoia sempervirens (d.don) endl. | rhizonema sequoiae n.gen, u. sp. is described from the roots of coast redwood, sequoia sempervirens (d. don) endl., growing near lake lagunitas, marin county, california. rhizonema females are annulated over their entire bodies, are wholly embedded in host tissue, and secrete an abundant amount of gel material. mature females do not form a cyst. the vulva is located on a large posterior terminal cone, and the anus is on the dorsal vulval lip. esophageal glands of the second-stage larvae fill mor ... | 1983 | 19295834 |
| mapped dna probes from loblolly pine can be used for restriction fragment length polymorphism mapping in other conifers. | a high-density genetic map based on restriction fragment length polymorphisms (rflps) is being constructed for loblolly pine (pinus taeda l.). consequently, a large number of dna probes from loblolly pine are potentially available for use in other species. we have used some of these dna probes to detect rflps in 12 conifers and an angiosperm. thirty complementary dna and two genomic dna probes from loblolly pine were hybridized to southern blots containing dna from five species of pinus (p. elli ... | 1994 | 24186006 |
| transcriptional regulators transforming growth factor-β1 and estrogen-related receptor-α identified as putative mediators of calf rumen epithelial tissue development and function during weaning. | molecular mechanisms regulating rumen epithelial development remain largely unknown. to identify gene networks and regulatory factors controlling rumen development, holstein bull calves (n=18) were fed milk replacer only (mro) until 42 d of age. three calves each were euthanized at 14 and 42 d of age for tissue collection to represent preweaning, and the remaining calves were provided diets of either milk replacer + orchard grass hay (mh; n=6) to initiate weaning without development of rumen pap ... | 2014 | 24767884 |
| technical note: use of laser capture microdissection for the localization of tissue-specific global gene expression in rumen papillae. | gene expression profiling of bovine rumen tissue has provided insight into dietary regulation of rumen epithelial function. however, most studies have relied on a heterogeneous sample with multiple tissue and cell types. the objective of this study was to use laser capture microdissection to characterize rna expression profiling of epithelial and connective tissues of rumen papillae. papillae were biopsied from 3 lactating dairy cows, frozen in cryomolds, cut into sections, stained, and dehydrat ... | 2013 | 24140313 |
| chloroplast dna restriction fragment length polymorphism in sequoia sempervirens d. don endl., pseudotsuga menziesii (mirb.) franco, calocedrus decurrens (torr.), and pinus taeda l. | the extent and type of chloroplast dna restriction fragment length polymorphism was determined among individual tree samples of coast redwood, douglas fir, incense-cedar, and loblolly pine. a total of 107 trees was surveyed for three restriction enzymes (bamhi, ecori, hindiii) and six chloroplast dna probes from petunia (p3, p4, p6, p8, p10, s8). the probes comprise 64% of the petunia chloroplast genome. polymorphisms were detected in all species but loblolly pine. coast redwood and incense-ceda ... | 1991 | 24221163 |
| preferences of coptotermes formosanus shiraki and coptotermes gestroi (wasmann) (blattodea: rhinotermitidae) among three commercial wood species. | the formosan subterranean termite, coptotermes formosanus shiraki, and the asian subterranean termite, coptotermes gestroi (wasmann), are both pests of wood in service in hawaii and florida. we conducted a laboratory study using method modified from those described in standard e1-09 of the american wood protection association (awpa 2009) to assess the termite resistance of three commercially available wood species used in regions of the usa where both termite species occur: douglas fir, pseudots ... | 2011 | 26467829 |
| legumin encoding sequences from the redwood family (taxodiaceae) reveal precursors lacking the conserved asn-gly processing site. | we have cloned and sequenced two different cdnas encoding legumins from japanese red cedar (cryptomeria japonica, taxodiaceae). the derived amino acid sequences show between 34% and 55% identity when compared with legumins from angiosperms and from pinaceae, respectively. the predicted precursors are unusual in that they contain potential glycosylation signals, and we have found the corresponding beta-polypeptides actually to be glycosylated. as most outstanding feature one of the precursors is ... | 1996 | 8612788 |
| [sequoiaflavone in the leaves of sequoia sempervirens and cunninghamia lanceolata var. konishii and its formation by partial demethylation]. | | 1968 | 5752247 |
| bermudagrass fertilized with slow-release nitrogen sources. i. nitrogen uptake and potential leaching losses. | with the objectives of analyzing n recovery and potential n losses in the warm-season hybrid bermudagrass 'tifgreen' [cynodon dactylon (l.) pers. x c. transvaalensis burtt-davy], two greenhouse studies were conducted. plugs were planted in pvc cylinders filled with a modified sandy growing medium. urea (ure), sulfur-coated urea (scu), and hydroform (hyd) (hydro agri san francisco, redwood city, ca) were broadcast at rates of 100 and 200 kg n ha-1 every 20 and 40 d. the grass was clipped three ti ... | 2013 | 11285904 |
| subpicosecond surface dynamics in genomic dna from in vitro-grown plant species: a sers assessment. | in this work the surface-enhanced raman total half band widths of seven genomic dnas from leaves of chrysanthemum (dendranthema grandiflora ramat.), common sundew (drosera rotundifolia l.), edelweiss (leontopodium alpinum cass), epilobium hirsutum l., hypericum richeri ssp. transsilvanicum (čelak) ciocârlan, rose (rosa x hybrida l.) and redwood (sequoia sempervirens d. don. endl.) have been measured. we have shown that surface-enhanced raman spectroscopy (sers) can be used to study the fast subp ... | 2015 | 25687823 |
| [study on origin and authentication of medicinal materials of dalbergiae lignum in crude drug's market]. | the study is aimed to distinguish morphological characteristics of dalbergiae lignum collected from crude drug's markets and establish a identification methods and the quality standard for dalbergiae lignum. the macroscopic and microscopic features of dalbergiae lignum from crude drug's market were observed, analyzed and compared according to hongmu specification issued by the people's republic of china in 2000, and by the characteristics recorded in domestic monograph of mucai shibie (wood iden ... | 2015 | 26790289 |
| wood preference of reticulitermes virginicus (blattodea: rhinotermitidae) using no-, two-, and four-choice designs and seven different measures of wood consumption. | three hundred reticulitermes virginicus (banks) workers were exposed to three 1-cm3 wood blocks of either quercus sp. (red oak), populus sp. (poplar), pinus sp. (pine), or sequoia sp. (redwood) placed into one of the three bioassay designs (no-, two-, and four-choice) for 21 d. termite wood consumption was measured by wood weight loss, resistance class, and visual rating. wood consumption rates were determined using four formulas in addition to two standardized visual rating scales (american soc ... | 2016 | 26743217 |
| effect of some leaf essential oil phenotypes from coastal redwood on growth of its predominant endophytic fungus,pleuroplaconema sp. | experiments were performed to assess the effect of four foliar essential oil phenotypes from a coastal redwood (sequoia sempervirens) population on isolates ofpleuroplaconema sp., its ubiquitous endophytic fungus. isolates were exposed to essential oils extracted from their trees of origin and from other trees. the hypotheses tested were: (1) redwood leaf essential oils extracted from distinct trees would have a differential effect onpleuroplaconema sp. growth, and (2) growth of isolates from a ... | 1991 | 24257924 |