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Articles 1 - 12 of 12
Full-Text Articles in Life Sciences
A Memorable Meeting, February 1994, Fathi Habashi
A Memorable Meeting, February 1994, Fathi Habashi
Fathi Habashi
Decision taken at the Steering Committee Meeting of the International Mineral Processing Congress in San Francisco February 1994 to name the IMPC Award.
Evaluation Of Plastic And Mylar Flagging As Repellents For Snow Geese (Chen Caerulescens), J. Russell Mason, Larry Clark
Evaluation Of Plastic And Mylar Flagging As Repellents For Snow Geese (Chen Caerulescens), J. Russell Mason, Larry Clark
Larry Clark
The effectiveness of white flags, black flags and Mylar streamers as visual repellents to snow geese (Chen caerulescens) was evaluated. Five farms in Cumberland and Salem counties, New Jersey served as test sites. At each farm, four 10.12 ha fields were selected randomly, and then assigned to four treatment conditions: (a) white plastic flags (one flag per 0.4 ha); (b) black plastic flags (one flag per 0.4 ha), (c) Mylar streamers (one streamer per 0.4 ha); and (d) stakes only (one stake per 0.4 ha). From 2 December 1992 to 24 March 1993, vegetation samples and goose droppings were collected …
Laboratory Evaluation Of A Methyl Anthranilate Bead Formulation For Reducing Mallard Mortality And Feeding Behavior, John Cummings, Larry Clark, Patricia Pochop, James Davis
Laboratory Evaluation Of A Methyl Anthranilate Bead Formulation For Reducing Mallard Mortality And Feeding Behavior, John Cummings, Larry Clark, Patricia Pochop, James Davis
Larry Clark
This study tested a modified MA formulation that was encapsulated at 15% MA by weight in a food-grade material coated with a water-impermeable material. The MA formulation was evaluated in a simulated pond setting to determine the effects on feeding behavior of mallards.
Field Evaluation: Mortality Of Mallards Feeding In Areas Treated With Methyl Anthranilate, John `Cummings, Larry Clark, Patricia Pochop
Field Evaluation: Mortality Of Mallards Feeding In Areas Treated With Methyl Anthranilate, John `Cummings, Larry Clark, Patricia Pochop
Larry Clark
In1992 a study was conducted to determine MA effectiveness in reducing the mortality of exposed mallards. The mortality of ducks continuously exposed to WP-contaminated sediment in a treated MA and control pen was equal at 24 hours but increased in the control pen through the onclusion of the test. Subsequently mallard mortality was reduced 60% in the MA-treated pen. However, mOdification in the MA bead formulation and replicated testing were needed.
Field Behavioral Response And Bead Formulations For Methyl Antiiranilate Encapsulated Bird Repellents, Larry Clark, John Cummings
Field Behavioral Response And Bead Formulations For Methyl Antiiranilate Encapsulated Bird Repellents, Larry Clark, John Cummings
Larry Clark
The main objective of the 1993 field season was to find a formulation that would provide suitable repellency and optimal characteristics•of stability. A secondary objective was to determine whether ducks could be moved off a treated area and whether feeding activity would reflect the substrate conditions, i.e. lower feeding activity on treated surfaces and increased feeding activity on control surfaces.
Evaluation Of Concover® And Bentoballstm On Contaminated Sediments To Reduce Mortality, Patricia Pochop, John Cummings, Larry Clark, James Davis
Evaluation Of Concover® And Bentoballstm On Contaminated Sediments To Reduce Mortality, Patricia Pochop, John Cummings, Larry Clark, James Davis
Larry Clark
The objectives of this study were to evaluate the physical characteristics, application rate and longevity of Concover® and Bento'6alls™ (clay barrier system) when applied to bottom sediment in a simulated pond setting. The product that held up under mallard use was field tested to determine its effects on waterfowl feeding behavior and mortality at ERF.
Use Of Activated Charcoal And Other Particulate Substances As Feed Additives To Suppress Bird Feeding, J. Russell Mason, Larry Clark
Use Of Activated Charcoal And Other Particulate Substances As Feed Additives To Suppress Bird Feeding, J. Russell Mason, Larry Clark
Larry Clark
Osmotic strength is a function of particle number. The experiments described here were designed to test whether the consumption of a large number of small particles might induce strong osmotic effects that, in turn, could induce food avoidance learning. The experiments also evaluated whether the abrasiveness of fine particulates or their ability to act as organic adsorbants could mediate or contribute to the avoidance of adulterated diets. In experiment I. captive European starlings (Sturnus vulgaris) were given two-cup tests between plain chow and chow adulterated with activated charcoal or Anjan-activaid. a product containing large amounts of activated charcoal. Both adulterants …
Tests And Refinements Of A General Structure-Activity Model For Avian Repellents, Larry Clark, Pankaj Shah
Tests And Refinements Of A General Structure-Activity Model For Avian Repellents, Larry Clark, Pankaj Shah
Larry Clark
We tested the robustness of a structure-activity model for avian trigeminal chemoirritants. Fourteen benzoates and acetophenones were tested using European starlings Sturn us vulgaris as a bioassay. In general. the pre viously proposed model was a reasonable predictor of repellency (i.e., irritant potency). We found that the presence of a phenyl ring was critical to repel lency. Basicity of the molecule is the next most critical feature influencing repellency. The presence of an acidic function within the electron-withdrawing functionality seriously detracts from repellency. The presence or absence of an electron-withdrawing or -donating group may potentiate repellent effects, but its presence …
Using Hydrophilic Polymers To Control Nutrient Release, Robert Mikkelsen
Using Hydrophilic Polymers To Control Nutrient Release, Robert Mikkelsen
Robert Mikkelsen
Using diverse technological approaches, many types of delivery devices have been used to supply plant nutrients at a controlled rate in the soil. One new approach is the use of hydrophilic polymers as carriers of plant nutrients. These polymers may be generally classified as 1) natural polymers derived from polysaccharides, 2) semi-synthetic polymers (primarily cellulose derivatives), and 3) synthetic polymers. By controlling the reaction conditions when forming the polymers, various degrees of cross-linking, anionic charge, and cationic charge can be added, thereby changing their effectiveness as fertilizer carriers. When fertilizer-containing solutions are mixed with hydrophilic polymers to form a "gel" …
Bacterial Symbionts Induce Host Organ Morphogenesis During Early Postembryonic Development Of The Squid Euprymna Scolopes, Mary Montgomery, M Mcfall-Ngai
Bacterial Symbionts Induce Host Organ Morphogenesis During Early Postembryonic Development Of The Squid Euprymna Scolopes, Mary Montgomery, M Mcfall-Ngai
Mary Montgomery
No abstract provided.
Expression Of Prelamin A Confers Sensitivity Of Dna Biosynthesis To Lovastatin On F9 Teratocarcinoma Cells, Michael Sinensky, T. Mclain, K. Fantle
Expression Of Prelamin A Confers Sensitivity Of Dna Biosynthesis To Lovastatin On F9 Teratocarcinoma Cells, Michael Sinensky, T. Mclain, K. Fantle
Michael Sinensky
No abstract provided.
The Processing Pathway Of Prelamin A, Michael Sinensky, K. Fantle, M. Trujillo, T. Mclain, A. Kupfer, M. Dalton
The Processing Pathway Of Prelamin A, Michael Sinensky, K. Fantle, M. Trujillo, T. Mclain, A. Kupfer, M. Dalton
Michael Sinensky
The conversion of mammalian prelamin A to mature lamin A proceeds through the removal of 18 amino acids from the carboxyl terminus. The initial step in this processing is the isoprenylation of a CAAX box cysteine. This proteolytic event is distinctive for prelamin A among the known prenylated mammalian proteins. Since the carboxyl terminus of prelamin A is removed during maturation, it is not obvious that this protein would undergo the two reactions subsequent to prenylation observed in other CAAX box proteins-the endoproteolytic removal of the carboxyl-terminal 3 amino acids and the subsequent methylation of the now carboxyl-terminal cysteine. To …