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Full-Text Articles in Life Sciences

Assessment Of Fungal Diversity Using Terminal Restriction Fragment (Trf) Pattern Analysis: Comparison Of 18s And Its Ribosomal Regions, N. S. Lord, Christopher W. Kaplan, P. Shank, Christopher L. Kitts, Susan L. Elrod Dec 2002

Assessment Of Fungal Diversity Using Terminal Restriction Fragment (Trf) Pattern Analysis: Comparison Of 18s And Its Ribosomal Regions, N. S. Lord, Christopher W. Kaplan, P. Shank, Christopher L. Kitts, Susan L. Elrod

Biological Sciences

Assessment of fungal diversity in environmental samples is currently a challenge. Several recently developed molecular methods offer new avenues for determining the presence and diversity of fungi in complex microbial communities. Terminal restriction fragment (TRF) pattern analysis was tested as a method for assessing the fungal molecular diversity of a terrestrial microbial community. Community DNA was isolated from sand samples taken from a pilot-scale petroleum-contaminated land treatment unit. PCR amplification was carried out using primers, one of which was fluorescently labeled, designed to hybridize to conserved sequences in the fungal ribosomal small subunit (18S) or the internal transcribed spacer ITS1 ...


Assessment Of Quality Of Life In Obese Individuals, Thomas A. Wadden, Suzanne Phelan Nov 2002

Assessment Of Quality Of Life In Obese Individuals, Thomas A. Wadden, Suzanne Phelan

Kinesiology

No abstract provided.


An Assessment Of The Factors That Influence The Promotion And Delivery Of Sport, Fitness, And Health Courses: Contributions Of Marketing To Physical Education, Ketra L. Armstrong, Camille O'Bryant, Carla Costa Oct 2002

An Assessment Of The Factors That Influence The Promotion And Delivery Of Sport, Fitness, And Health Courses: Contributions Of Marketing To Physical Education, Ketra L. Armstrong, Camille O'Bryant, Carla Costa

Kinesiology

The factors that influence students' enrollment in sport, fitness, and health courses, and their evaluation of the quality of service they receive continues to be of interest. A case study exposed a variety of factors influencing the promotion and delivery of sport, fitness. and health courses. While most of the factors identified were only minimally influential, the most prominent reasons for enrolling in sport, fitness, and health courses were related to skill development or enhancement of knowledge about health anti fitness. The "performance of the instructor" received the highest raring relating to course delivery quality, and "improvement in fitness" received ...


The Role Of Adherence In Mediating The Relationship Between Depression And Health Outcomes, Rena R. Wing, Suzanne Phelan, Deborah Tate Oct 2002

The Role Of Adherence In Mediating The Relationship Between Depression And Health Outcomes, Rena R. Wing, Suzanne Phelan, Deborah Tate

Kinesiology

Depression has been linked to poor health outcome in a number of studies; however, the mechanism underlying this relationship has received little attention. This paper explores the possibility that adherence mediates the relationship between depression and outcome. Principal findings regarding the relationship between depression, adherence, and outcome are reviewed. The data suggest that depression is related, at least moderately, to poorer adherence to a variety of treatment components. The relationship between adherence and outcome is more difficult to establish. In addition, current data, albeit limited, do not support the hypothesis that adherence mediates the relationship between depression and outcome. An ...


High-Temperature Controlled Atmosphere For Post-Harvest Control Of Indian Meal Moth (Lepidoptera: Pyralidae) On Preserved Flowers, Jodi A. Sauer, Mark D. Shelton Oct 2002

High-Temperature Controlled Atmosphere For Post-Harvest Control Of Indian Meal Moth (Lepidoptera: Pyralidae) On Preserved Flowers, Jodi A. Sauer, Mark D. Shelton

Office of the Dean (CAFES) Scholarship

High carbon dioxide atmospheres combined with high temperature were effective for controlling Indian meal moth, Plodia interpunctella (Hübner) pupae. Pupae were exposed to atmospheres of 60, 80, or 98% carbon dioxide (CO2) in nitrogen (N2), or 60 or 80% CO2in air at temperatures of 26.7°C or 32.2°C and 60% RH. Controlled atmosphere treatments at 32.2°C controlled pupae faster than the same treatments at the lower temperature. At both temperatures high CO2 concentration treatments combined with nitrogen killed pupae faster than high CO2 concentration treatments combined with air. Exposure ...


Nearshore Physical Processes And Bio-Optical Properties In The New York Bight, G. C. Chang, T. D. Dickey, Oscar M. Schofield, A. D. Weidemann, E. Boss, W. S. Pegau, Mark A. Moline, Scott M. Glenn Sep 2002

Nearshore Physical Processes And Bio-Optical Properties In The New York Bight, G. C. Chang, T. D. Dickey, Oscar M. Schofield, A. D. Weidemann, E. Boss, W. S. Pegau, Mark A. Moline, Scott M. Glenn

Biological Sciences

Temporal and spatial variability of physical, biological, and optical properties on scales of minutes to months and meters to ~50 km are examined using an extensive data set collected on the New York Bight continental shelf during the Hyperspectral Coastal Ocean Dynamics Experiment. Measurements from a midshelf mooring and bottom tripod (~25 km offshore, 24 m water depth) and two nearshore profiling nodes (~5 km offshore, 15 m water depth) are utilized to quantify and correlate midshelf and nearshore variability. Towed shipboard undulating profilers and a high-frequency radar (CODAR) array provide complementary spatial data. We show that phytoplankton and dissolved ...


Reduced Reproductive Effort In Male Field Crickets Infested With Parasitoid Fly Larvae, Gita R. Kolluru, Marlene Zuk, Mark A. Chappell Sep 2002

Reduced Reproductive Effort In Male Field Crickets Infested With Parasitoid Fly Larvae, Gita R. Kolluru, Marlene Zuk, Mark A. Chappell

Biological Sciences

Some populations of the field cricket Teleogryllus oceanicus are parasitized by the phonotactic fly Ormia ochracea. Flies locate crickets by their song and deposit larvae onto them. The larvae develop inside the cricket for 1 week before killing the host upon emergence. The reproductive compensation hypothesis predicts that parasitized crickets should increase their reproductive effort during the initial stages of infestation to offset the loss of fitness resulting from their shortened life span. An alternative hypothesis predicts that parasitized crickets will decrease reproduction, either because they are unable to reproduce or because selection acting on the parasitoid favors decreased host ...


Analysis Of Platelet Activating Factor In The Gravid Reproductive Tracts Of Swine, William E. Plummer Aug 2002

Analysis Of Platelet Activating Factor In The Gravid Reproductive Tracts Of Swine, William E. Plummer

Animal Science

No abstract provided.


Discovering Lactic Acid Bacteria By Genomics, Todd Klaenhammer, Eric Altermann, Fabrizio Arigoni, Alexander Bolotin, Fred Breidt, Jeffrey Broadbent, Raul J. Cano, Stephane Chaillou, Josef Deutscher, Mike Gasson, Maarten Van De Guchte, Jean Guzzo, Axel Hartke, Trevor Hawkins, Pascal Hols, Robert Hutkins, Michiel Kleerebezem, Jan Kok, Oscar Kuipers, Mark Lubbers, Emmanuelle Maguin, Larry Mckay, David Mills, Arjen Nauta, Ross Overbeek, Herman Pel, David Pridmore, Milton Saier, Douwe Van Sinderen, Alexei Sorokin, James Steele, Daniel O'Sullivan, Willem De Vos, Bart Weimer, Monique Zagorec, Roland Siezen Aug 2002

Discovering Lactic Acid Bacteria By Genomics, Todd Klaenhammer, Eric Altermann, Fabrizio Arigoni, Alexander Bolotin, Fred Breidt, Jeffrey Broadbent, Raul J. Cano, Stephane Chaillou, Josef Deutscher, Mike Gasson, Maarten Van De Guchte, Jean Guzzo, Axel Hartke, Trevor Hawkins, Pascal Hols, Robert Hutkins, Michiel Kleerebezem, Jan Kok, Oscar Kuipers, Mark Lubbers, Emmanuelle Maguin, Larry Mckay, David Mills, Arjen Nauta, Ross Overbeek, Herman Pel, David Pridmore, Milton Saier, Douwe Van Sinderen, Alexei Sorokin, James Steele, Daniel O'Sullivan, Willem De Vos, Bart Weimer, Monique Zagorec, Roland Siezen

Biological Sciences

This review summarizes a collection of lactic acid bacteria that are now undergoing genomic sequencing and analysis. Summaries are presented on twenty different species, with each overview discussing the organisms fundamental and practical significance, environmental habitat, and its role in fermentation, bioprocessing, or probiotics. For those projects where genome sequence data were available by March 2002, summaries include a listing of key statistics and interesting genomic features. These efforts will revolutionize our molecular view of Gram-positive bacteria, as up to 15 genomes from the low GC content lactic acid bacteria are expected to be available in the public domain by ...


The Heat-Shock Response: Its Variation, Regulation And Ecological Importance In Intertidal Gastropods (Genus Tegula), Lars Tomanek Aug 2002

The Heat-Shock Response: Its Variation, Regulation And Ecological Importance In Intertidal Gastropods (Genus Tegula), Lars Tomanek

Biological Sciences

The enhanced synthesis of heat-shock proteins (hsps), called the heat-shock (or stress) response, is activated when environmental stress denatures proteins. Hsp synthesis is activated at the upper temperatures of an organism's thermal range and is therefore thought to be critical for enhancing thermal tolerance limits in ectothermic animals. Here I show that the two temperate sister species T. brunnea and T. montereyi that occupy the subtidal and low-intertidal zone differ from the low- to mid-intertidal T. funebralis (and the subtropical mid-intertidal T. rugosa) in (i) heat tolerance, (ii) the onset temperature of their main hsp, hsp70 (70 kDa), (iii ...


An Ecological Basis For Managing Giant Sequoia Ecosystems, Douglas D. Piirto, Robert R. Rogers Jul 2002

An Ecological Basis For Managing Giant Sequoia Ecosystems, Douglas D. Piirto, Robert R. Rogers

Natural Resources Management and Environmental Sciences

A strategy for management of giant sequoia groves is formulated using a conceptual framework for ecosystem management recently developed by Region Five of the USDA Forest Service. The framework includes physical, biological, and social dimensions. Environmental indicators and reference variability for key ecosystem elements are discussed in this paper. The selected ecosystem elements include: 1) attitudes, beliefs, and values; 2) economics and subsistence; 3) stream channel morphology; 4) sediment; 5) water; 6) fire; 7) organic debris; and 8) vegetation mosaic. Recommendations are made for the attributes of environmental indicators that characterize these elements. These elements and associated indicators will define ...


Litr, A New Transcriptional Activator In Vibrio Fischeri, Regulates Luminescence And Symbiotic Light Organ Colonization, Pat Fidopiastis, Carol M. Miyamoto, Michael G. Jobling, Edward A. Meighen, Edward G. Ruby Jul 2002

Litr, A New Transcriptional Activator In Vibrio Fischeri, Regulates Luminescence And Symbiotic Light Organ Colonization, Pat Fidopiastis, Carol M. Miyamoto, Michael G. Jobling, Edward A. Meighen, Edward G. Ruby

Biological Sciences

Vibrio fischeri is the bacterial symbiont within the light-emitting organ of the sepiolid squid Euprymna scolopes . Upon colonizing juvenile squids, bacterial symbionts grow on host-supplied nutrients, while providing a bioluminescence that the host uses during its nocturnal activities. Mutant bacterial strains that are unable to emit light have been shown to be defective in normal colonization. A 606 bp open reading frame was cloned from V. fischeri that encoded a protein, which we named LitR, that had about 60% identity to four related regulator proteins: Vibrio cholerae HapR, Vibrio harveyi LuxR, Vibrio parahaemolyticus OpaR and Vibrio vulnificus SmcR. When grown ...


Predicting Plant Invasion With Modeling, Scott J. Steinmaus Jul 2002

Predicting Plant Invasion With Modeling, Scott J. Steinmaus

Biological Sciences

No abstract provided.


Effects Of Temperature, Epinephrine And Ca2+ On The Hearts Of Yellowfin Tuna (Thunnus Albacares), Jason M. Blank, Jeffery M. Morrissette, Peter S. Davie, Barbara A. Block Jul 2002

Effects Of Temperature, Epinephrine And Ca2+ On The Hearts Of Yellowfin Tuna (Thunnus Albacares), Jason M. Blank, Jeffery M. Morrissette, Peter S. Davie, Barbara A. Block

Biological Sciences

Tuna are endothermic fish with high metabolic rates, cardiac outputs and aerobic capacities. While tuna warm their skeletal muscle, viscera, brain and eyes, their hearts remain near ambient temperature, raising the possibility that cardiac performance may limit their thermal niches. We used an in situ perfused heart preparation to investigate the effects of acute temperature change and the effects of epinephrine and extracellular Ca2+ on cardiac function in yellowfin tuna (Thunnus albacares). Heart rate showed a strong temperature-dependence, ranging from 20 beats min-1 at 10 °C to 109 beats min-1 at 25 °C. Maximal stroke volume showed ...


Chaperones As Buffering Agents?, Thomas Mitchell-Olds, Charles A. Knight Jun 2002

Chaperones As Buffering Agents?, Thomas Mitchell-Olds, Charles A. Knight

Biological Sciences

No abstract provided.


Review Of Entomology & Pest Management, By Larry P. Pedigo, 4th Edition, Mark D. Shelton Jun 2002

Review Of Entomology & Pest Management, By Larry P. Pedigo, 4th Edition, Mark D. Shelton

Office of the Dean (CAFES) Scholarship

Review of Entomology & Pest Management by Larry P. Pedigo, 4th edition, Prentice Hall, 2002, 742 pp., Hardbound. $78.75.


Dietary Patterns And Prostate Cancer Risk In The Nhefs Cohort, Marilyn Tseng Jun 2002

Dietary Patterns And Prostate Cancer Risk In The Nhefs Cohort, Marilyn Tseng

Kinesiology

We examined the association between dietary patterns and prostate cancer risk using data from the first National Health and Nutrition Examination Epidemiologic Follow-up Study. The study population included 3,779 men followed 1982-4 to 1992, with 136 prostate cancer cases identified during the follow-up. Principal components analysis on responses to a lOS-item diet questionnaire in 1982-84 was used to identify dietary patterns, and scores representing level of intake of each pattern were categorized into tertiles. Three distinct patterns were identified: a vegetable-fruit pattern, a red meat-starch pattern characterized by intake of beef, pork, potatoes, and sweets, and a southern pattern ...


Combining Behavioral And Pharmacological Treatments For Obesity, Suzanne Phelan, Thomas A. Wadden Jun 2002

Combining Behavioral And Pharmacological Treatments For Obesity, Suzanne Phelan, Thomas A. Wadden

Kinesiology

Weight-loss medications are currently recommended for use only as an adjunct to diet, exercise, and behavior modification. Little, however, is known about the benefits of combining behavioral and pharmacological therapies or about the mechanisms that would make these combined approaches more effective than either used alone. This article reviews the effects of adding pharmacotherapy (i.e., principally sibutramine and orlistat) to a modest program of lifestyle modification. Studies revealed that the addition of medication typically improved short- and long-term weight loss compared with lifestyle modification alone. The best results, however, were obtained when medications were combined with an intensive, group ...


Comparative Phenotypic, Molecular, And Virulence Characterization Of Vibrio Parahaemolyticus O3:K6 Isolates, P.S. Marie Yeung, Micaela C. Hayes, Angelo Depaola, Charles A. Kaysner, Laura Kornstein Jun 2002

Comparative Phenotypic, Molecular, And Virulence Characterization Of Vibrio Parahaemolyticus O3:K6 Isolates, P.S. Marie Yeung, Micaela C. Hayes, Angelo Depaola, Charles A. Kaysner, Laura Kornstein

Biological Sciences

Historically, Vibrio parahaemolyticus infections have been characterizedby sporadic cases caused by multiple, diverse serotypes. However,since 1996, V. parahaemolyticus serotype O3:K6 strains havebeen associated with several large-scale outbreaks of illness,suggesting the emergence of a "new" group of organisms withenhanced virulence. We have applied three different molecularsubtyping techniques to identify an appropriate method for differentiatingO3:K6 isolates from other serotypes. Pulsed-field gel electrophoresis(PFGE) following NotI digestion differentiated seven closelyrelated subtypes among O3:K6 and related strains, which weredistinct from PFGE patterns for non-O3:K6 isolates. Ribotypingand tdh sequencing were less discriminatory than PFGE, but furtherconfirmed close genetic ...


The Production Of Communication Signals At The Air–Water And Water–Substrate Boundaries, Sean C. Lema, John T. Kelly Jun 2002

The Production Of Communication Signals At The Air–Water And Water–Substrate Boundaries, Sean C. Lema, John T. Kelly

Biological Sciences

The 2 interfaces of the aquatic environment, the boundary between air–water and water–substrate, have distinctive physical characteristics that facilitate the production of communication signals. Recent evidence suggests that animals living on or near these boundaries use the interface to generate signals in 2 ways: (a) by producing a signal that propagates along the interface or (b) by producing a signal at the interface that is transmitted and detected within 1 of the component media. By examining the diversity of behaviors used to produce signals at these boundaries, the authors illustrate how human perception of these environments may cause ...


Species-Specific Identification Of Commercial Probiotic Strains, Marie Yeung, M. E. Sanders, Christopher L. Kitts, Raul Cano, Phillip S. Tong May 2002

Species-Specific Identification Of Commercial Probiotic Strains, Marie Yeung, M. E. Sanders, Christopher L. Kitts, Raul Cano, Phillip S. Tong

Biological Sciences

Products containing probiotic bacteria are gaining popularity, increasing the importance of their accurate speciation. Unfortunately, studies have suggested that improper labeling of probiotic species is common in commercial products. Species identification of a bank of commercial probiotic strains was attempted using partial 16S rDNA sequencing, carbohydrate fermentation analysis, and cellular fatty acid methyl ester analysis. Results from partial 16S rDNA sequencing indicated discrepancies between species designations for 26 out of 58 strains tested, including two ATCC Lactobacillus strains. When considering only the commercial strains obtained directly from the manufacturers, 14 of 29 strains carried species designations different from those obtained ...


The Long-Term Ecosystem Observatory: An Integrated Coastal Observatory, Oscar Schofield, Trisha Bergmann, Paul Bissett, J. Frederick Grassle, Dale B. Haidvogel, Josh Kohut, Mark A. Moline, Scott M. Glenn Apr 2002

The Long-Term Ecosystem Observatory: An Integrated Coastal Observatory, Oscar Schofield, Trisha Bergmann, Paul Bissett, J. Frederick Grassle, Dale B. Haidvogel, Josh Kohut, Mark A. Moline, Scott M. Glenn

Biological Sciences

An integrated ocean observatory has been developed and operated in the coastal waters off the central coast of New Jersey, USA. One major goal for the Long-term Ecosystem Observatory (LEO) is to develop a real-time capability for rapid environmental assessment and physical/biological forecasting in coastal waters. To this end, observational data are collected from satellites, aircrafts, ships, fixed/relocatable moorings and autonomous underwater vehicles. The majority of the data are available in real-time allowing for adaptive sampling of episodic events and are assimilated into ocean forecast models. In this observationally rich environment, model forecast errors are dominated by uncertainties ...


A New Auv Platform For Studying Near Shore Bioluminescence Structure, Mark A. Moline, S. Blackwell, J. Case, S. Glenn, J. Kohut, O. Schofield, M. Purcell, C. Vonalt Apr 2002

A New Auv Platform For Studying Near Shore Bioluminescence Structure, Mark A. Moline, S. Blackwell, J. Case, S. Glenn, J. Kohut, O. Schofield, M. Purcell, C. Vonalt

Biological Sciences

Peaks in bioluminescence are often associated with small spatial features including frontal boundaries, vertical thin-layers, and convergence/divergence zones.1,2 Due to the highly variable nature of these features in the near shore environment, accurate assessment of bioluminescence potential is dependent upon the application of appropriate platforms and the use of these platforms at relevant time and space scales. Both traditional shipboard profiling techniques and moored vertical profiling instrumentation fail to adequately provide the appropriate spatial resolution to explain the dynamics of near shore bioluminescence. In an effort to resolve the mechanisms underlying the temporal and spatial variation in ...


Interspecific- And Acclimation-Induced Variation In Levels Of Heat-Shock Proteins 70 (Hsp70) And 90 (Hsp90) And Heat-Shock Transcription Factor-1 (Hsf1) In Congeneric Marine Snails (Genus Tegula): Implications For Regulation Of Hsp Gene Expression, Lars Tomanek, George N. Somero Mar 2002

Interspecific- And Acclimation-Induced Variation In Levels Of Heat-Shock Proteins 70 (Hsp70) And 90 (Hsp90) And Heat-Shock Transcription Factor-1 (Hsf1) In Congeneric Marine Snails (Genus Tegula): Implications For Regulation Of Hsp Gene Expression, Lars Tomanek, George N. Somero

Biological Sciences

In our previous studies of heat-shock protein (hsp) expression in congeneric marine gastropods of the genus Tegula, we observed interspecific and acclimation-induced variation in the temperatures at which heat-shock gene expression is induced (Ton). To investigate the factors responsible for these inter- and intraspecific differences in Ton, we tested the predictions of the ‘cellular thermometer’ model for the transcriptional regulation of hsp expression. According to this model, hsps not active in chaperoning unfolded proteins bind to a transcription factor, heat-shock factor-1 (HSF1), thereby reducing the levels of free HSF1 that are available to bind to the heat-shock element ...


Occam's Razor & The Nature Of Scientific Theories, William D. Stansfield Feb 2002

Occam's Razor & The Nature Of Scientific Theories, William D. Stansfield

Biological Sciences

No abstract provided.


An Ecological And Evolutionary Analysis Of Photosynthetic Thermotolerance Using The Temperature-Dependent Increase In Fluorescence, Charles A. Knight, David D. Ackerly Feb 2002

An Ecological And Evolutionary Analysis Of Photosynthetic Thermotolerance Using The Temperature-Dependent Increase In Fluorescence, Charles A. Knight, David D. Ackerly

Biological Sciences

The hypothesis that species inhabiting warmer regions have greater photosynthetic tolerance of high temperatures was tested using the temperature-dependent increase in fluorescence (T-Fo). Congeneric species pairs of Atriplex, Salvia, Encelia, and Eriogonum with desert versus coastal distributions were studied in a common environment and in the field. In addition, 21 species with contrasting microclimate distributions were studied at a field site in a northern California chaparral community. The average July maximum temperature within the current distributions of species was quantified using a geographic information system. Four parameters (Tcrit, TS20, T50, and Tmax) of the T-F ...


Leaf Size, Specific Leaf Area And Microhabitat Distribution Of Chaparral Woody Plants: Contrasting Patterns In Species Level And Community Level Analyses, D. D. Ackerly, Charles A. Knight, S. B. Weiss, K. Barton, K. P. Starmer Feb 2002

Leaf Size, Specific Leaf Area And Microhabitat Distribution Of Chaparral Woody Plants: Contrasting Patterns In Species Level And Community Level Analyses, D. D. Ackerly, Charles A. Knight, S. B. Weiss, K. Barton, K. P. Starmer

Biological Sciences

We examined variation in leaf size and specific leaf area (SLA) in relation to the distribution of 22 chaparral shrub species on small-scale gradients of aspect and elevation. Potential incident solar radiation (insolation) was estimated from a geographic information system to quantify microclimate affinities of these species across north- and south-facing slopes. At the community level, leaf size and SLA both declined with increasing insolation, based on average trait values for the species found in plots along the gradient. However, leaf size and SLA were not significantly correlated across species, suggesting that these two traits are decoupled and associated with ...


Calorimetric Study Of Block-Copolymers Of Poly(N-Butyl Acrylate) And Gradient Poly(N-Butyl Acrylate-Co-Methyl Methacrylate), A I. Buzin, M Pyda, P Costanzo, K Matyjaszewski, B Wunderlich Jan 2002

Calorimetric Study Of Block-Copolymers Of Poly(N-Butyl Acrylate) And Gradient Poly(N-Butyl Acrylate-Co-Methyl Methacrylate), A I. Buzin, M Pyda, P Costanzo, K Matyjaszewski, B Wunderlich

Chemistry and Biochemistry

The nanophase separation in diblock and triblock copolymers consisting of immiscible poly(n-butyl acrylate) (block A) and gradient copolymers of methyl methacrylate (MMA) and n-butyl acrylate (n BA) (block M/A) were investigated by means of their heat capacity, Cp, as a function of the composition of the blocks M/A and temperature. In all copolymers studied, both blocks are represented by their Cp and glass transition temperature, Tg, as well as the broadening of the transition-temperature range. The low-temperature transition of the blocks A is always close to that of the pure poly(n ...


Disulfide Bonding Patterns Between Β-Lactoglobulin And Κ-Casein In A Heated And Spray-Dried Milk-Model, Annie Bienvenue, C. S. Norris, Michael J. Boland, Lawrence K. Creamer, Rafael Jiménez-Flores Jan 2002

Disulfide Bonding Patterns Between Β-Lactoglobulin And Κ-Casein In A Heated And Spray-Dried Milk-Model, Annie Bienvenue, C. S. Norris, Michael J. Boland, Lawrence K. Creamer, Rafael Jiménez-Flores

Dairy Science

Abstract of paper presented at the 2002 Joint Annual Meeting of the American Dairy Science Association & the American Society of Animal Science.


Two New Species Of Pectis (Asteraceae: Tageteae) From South America, David J. Keil Jan 2002

Two New Species Of Pectis (Asteraceae: Tageteae) From South America, David J. Keil

Biological Sciences

Pectis hassleri and P. pumila are new species, the former from the Gran Chaco area of Paraguay and the latter from southwester Encuador and northwestern Peru. Pectis hassleri differs from P. odorata by leaves that are glandular-punctaoten the adaxial as well as the abaxial surfaces, by longer and wider ligules of the ray florets, and by ray pappi of awns and shorter bristles. Pectis pumila differs from the closely related P. arida by its wider leaves and by its sessile or subsessile capitula with campanulatein volucresa nd obovatep hyllaries.A hexaploid chromosome count of 2n = 361 is newly reported for ...