Relating Electrolyte Leakage to Shelled Corn Storability     

Bradley P. Marks  Richard L. Stroshine 《Cereal Chemistry》1998,75(5):651-655

Corn from three growing seasons was harvested, dried, and stored in small bins. Samples taken at harvest and after various periods of bin storage (up to 77 months) were evaluated by two primary tests: carbon dioxide evolution during accelerated storage at ≈20.5% moisture content and 26°C and electrolyte leakage from bulk (100 g) samples soaking in deionized water. The initial (t < 72 hr) slope of carbon dioxide evolution rate curves (SLOPE72) was used as a base measure of storability (i.e., potential for safe storage without significant mold invasion). In electrolyte leakage tests, both test temperature and initial sample moisture content influenced results. Additionally, water conductivity after 10 min was correlated (r = 0.79) with SLOPE72, implying that electrolyte leakage has the potential to provide rapid information regarding future storability.  相似文献   

Circuits of power: Environmental injustice from Bangkok's shopping malls to Laos’ hydropower dams     

Danny Marks  Jun Zhang 《Asia Pacific viewpoint》2019,60(3):296-309

In what ways are lifestyles in urbanising Thailand, increasingly oriented towards shopping malls related to the threat to the wildlife and struggles for subsistence in distant Lao hinterlands? Our article answers this question by looking at the workings of electricity as the key infrastructure that connects these seemingly unrelated events and practices. We argue that the circulation of electricity flows along uneven channels, shifting injury and environmental harm across international borders. This circuit is perpetuating inequality and environmental injustice in the Lower Mekong. To demonstrate this claim, we analyse the electricity sector at numerous scales and locations – the urban scale in Bangkok, the country scale of Thailand and then Laos and the local community scale in Laos. We then discuss by what means various material and social processes and actors at these different scales form this circuit. Looking at circuits of power allows us to link the story of electricity consumption with that of production, with an emphasis on their extraterritoriality, multiplicity and boundaries. Our findings illustrate the effects of this circuit on spaces far from a thought‐of urban area. Furthermore, we demonstrate the ways in which these effects have produced inequality and injustice across borders.  相似文献   

Endothelial cell gene expression of a neutrophil chemotactic factor by TNF-alpha, LPS, and IL-1 beta   总被引：73，自引：0，他引：73  

R M Strieter  S L Kunkel  H J Showell  D G Remick  S H Phan  P A Ward  R M Marks 《Science (New York, N.Y.)》1989,243(4897):1467-1469

Human endothelial cells produced a neutrophil chemotactic factor (NCF) upon stimulation with tumor necrosis factor-alpha (TNF-alpha), interleukin-1 beta (IL-1 beta), or lipopolysaccharide (LPS). The expression of endothelial cell-derived NCF messenger RNA and biological activity was both time- and concentration-dependent. Maximal NCF mRNA expression occurred at 10 and at 2 nanograms per milliliter for TNF and IL-1 beta, respectively; mRNA expression was first observed 1 hour after stimulation and was maintained for at least 24 hours. In situ hybridization analysis showed that NCF mRNA peaked in treated cells by 24 hours, whereas unstimulated cells were negative. These studies demonstrated that endothelial cells may participate in neutrophil-mediated inflammation by synthesizing a chemotactic factor in response to specific monokines and LPS.  相似文献   

Carcinogen in rock fern (Cheilanthes sieberi) from New Zealand and Australia     

BL SMITH  PP EMBLING  DR LAUREN  MP AGNEW  AD ROSS  PL GREENTREE 《Australian veterinary journal》1989,66(5):154-155

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Cuticle techniques in arthropods: T. A. Miller,Ed., Springer-Verlag,New York/Berlin, 1980. 410 pp., $59.00     

Edwin P. Marks 《Pesticide biochemistry and physiology》1981,16(3):268-269

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Etiology and diagnosis of laryngeal hemiplegia in horses   总被引：1，自引：0，他引：1  

D Marks  M P Mackay-Smith  L S Cushing  J A Leslie 《Journal of the American Veterinary Medical Association》1970,157(4):429-436

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Effect of hemodialysis on plasma amino acid concentrations in healthy dogs     

Elliott DA  Marks SL  Cowgill LD  Kass PH  Rogers QR 《American journal of veterinary research》2000,61(8):869-873

OBJECTIVE: To characterize the effect of maintenance hemodialysis on plasma amino acid concentrations and to quantitate free amino acid losses into the dialysate during hemodialysis in healthy dogs. ANIMALS: 8 healthy adult dogs. PROCEDURE: Five dogs received hemodialysis treatments 3 times per week for 4 weeks. Plasma amino acid concentrations were evaluated once per week for 4 weeks in each of the 5 dogs prior to hemodialysis (time 0), 90 minutes during hemodialysis, and immediately after hemodialysis (180 minutes). Total free amino acid concentrations and plasma amino acid concentrations (time 0, 90 minutes, and 180 minutes) in the dialysate were evaluated in 3 dogs that received 1 hemodialysis treatment. RESULTS: Significant time versus week interactions with any plasma amino acid were not detected; however, significant decreases in all plasma amino acid concentrations measured were detected at the midpoint of dialysis (46 +/- 2%) and at the end of each dialysis session (38 +/- 2%). Mean (+/- SEM) total free amino acid loss into the dialysate was 2.7 +/- 0.2 g or 0.12 g/kg of body weight. CONCLUSIONS AND CLINICAL RELEVANCE: Hemodialysis is associated with significant alterations in plasma amino acid concentrations and loss of free amino acids into the dialysate. Loss of amino acids into the dialysate, coupled with protein calorie malnutrition in uremic patients, may contribute to depletion of amino acid stores.  相似文献   

Effects of physical properties on incidence of breakage in canned white potatoes     

N. B. Reid  B. P. Marks  A. R. Gonzalez  T. J. Siebenmorgen 《American Journal of Potato Research》2000,77(5):319-324

During commercial sterilization of whole white potatoes, mild to severe breakage sometimes occurs. Physical properties of potatoes were measured before and after sterilization. These included major diameter, minor diameter, density, dry matter content, amylographic viscosity, compressive breaking strength, and tensile breaking strength. The experimental data were evaluated in terms of mean values from 33 different truckloads sampled at a commercial canning facility (60 tubers sampled per load). These properties were statistically compared to the incidence of breakage in sterilized potatoes. The results did not show significant relationships between any of the raw potato properties and the incidence of breakage. However, several properties of the sterilized potatoes (major diameter, peak viscosity, peak viscosity temperature) were linearly related to breakage (R² = 0.84).  相似文献   

Influence of storage and temperature on endospore and enterotoxin production by Clostridium perfringens in dogs.     

S L Marks  A Melli  P H Kass  S S Jang  A Barkhoodarian  D C Hirsh 《Journal of veterinary diagnostic investigation》2000,12(1):63-67

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Chronic phalaris toxicity in eastern grey kangaroos (Macropus giganteus)     

B Bacci  PL Whiteley  M Barrow  PH Phillips  J Dalziel  CM El‐Hage 《Australian veterinary journal》2014,92(12):504-508

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