Search Results - (Author, Cooperation:L. Gibson)

2018-01-27

Wiley-Blackwell

0148-0227

Geosciences

Physics

2013-09-28

American Association for the Advancement of Science (AAAS)

0036-8075

1095-9203

Biology

Chemistry and Pharmacology

Computer Science

Medicine

Natural Sciences in General

Physics

Animals ; Biodiversity ; *Conservation of Natural Resources ; *Extinction, Biological ; Humans ; Islands ; Mammals/*classification ; Thailand ; *Trees

2012-12-12

American Association for the Advancement of Science (AAAS)

0036-8075

1095-9203

Biology

Chemistry and Pharmacology

Computer Science

Medicine

Natural Sciences in General

Physics

Bacterial Proteins/genetics ; *DNA Breaks, Double-Stranded ; DNA Repair/*genetics ; Escherichia coli/*genetics ; *Gene Expression Regulation, Bacterial ; *Gene Regulatory Networks ; Mutagenesis/genetics ; SOS Response (Genetics)/genetics ; Sigma Factor/genetics ; Stress, Physiological/*genetics

2011-03-10

American Association for the Advancement of Science (AAAS)

0036-8075

1095-9203

Biology

Chemistry and Pharmacology

Computer Science

Medicine

Natural Sciences in General

Physics

Animals ; Biodiversity ; Climate Change ; *Coral Reefs ; *Ecosystem ; Fires ; Humans ; Indonesia ; Thailand ; *Trees

2011-09-16

Nature Publishing Group (NPG)

0028-0836

1476-4687

Biology

Chemistry and Pharmacology

Medicine

Natural Sciences in General

Physics

Animals ; *Biodiversity ; Conservation of Natural Resources ; Humans ; *Trees ; *Tropical Climate

2018-11-23

American Association for the Advancement of Science (AAAS)

0036-8075

1095-9203

Biology

Chemistry and Pharmacology

Geosciences

Computer Science

Medicine

Natural Sciences in General

Physics

Materials Science, Physics

1745-4573

Blackwell Publishing Journal Backfiles 1879-2005

Process Engineering, Biotechnology, Nutrition Technology

Ten Holstein steers were fed conventional back grounding and finishing diets and 10 comparable steers were supplemented with poultry litter. At the end of the finishing period, all animals were harvested. After 144 h at 2C, the boneless M. longissimus thoracis et lumborum muscles were removed, cut into steaks (1.9 cm), vacuum packaged, and frozen. A steak adjacent to the thirteenth thoracic vertebra of alternate carcass sides was removed and thawed (4C for 24 h). All steaks were then over wrapped in oxygen permeable film, displayed for four days, and evaluated for retail properties and performance. Changes in visual properties and meat pigments during display clearly demonstrated samples from treated animals had an additional day of color stability over their untreated counterparts, resulting in an additional day of retail case-life based upon visual properties.

Electronic Resource

1600-0560

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

The histopathologic findings in 331 cases of necrobiosis lipoidica diabeticorum seen during a 50-year period were reviewed. Three cases showing cholesterol cleft formation were found. All 3 cases were associated with severe diabetes mellitus. The differential diagnosis of importance is necrobiotic xanthogranuloma. Common features included extensive hyaline necrobiosis and foreign-body giant cells. Atypical and Touton-typc giant cells are more common in necrobiotic xanthogranuloma. Vascular changes in necrobiotic xanthogranuloma may include granulomatous involvement of muscular walls with thrombosis. Explanations for cholesterol cleft formation arc offered. When cholesterol clefts are seen in biopsy specimens of necrobiosis, necrobiotic xanthogranuloma must be ruled out. In addition, when found in necrobiosis lipoidica diabeticorum, these clefts may imply diabetes mellitus with complications.

Electronic Resource

1745-4573

Blackwell Publishing Journal Backfiles 1879-2005

Process Engineering, Biotechnology, Nutrition Technology

A total of 500 lambs (159 rams, 165 ewes, and 176 wethers) sh to nine months of age and with slaughter weights between 41 and 77 kg were utilized. Electrical stimulation accelerated pstmortem PH (P〈0.05). However, significant linear time trends were not observed with any treatment in the rwo muscles evaluated. Muscle temperature declined progressively as expected with all treatments and in all muscles. However, electrically stimulated, hot-processed muscles cooled the most rapidly, due to the hot-processing treatment, and had the lowest percentage transmission, while electrically stimulated muscles had the greatest amount of expressible juice (P〈0.05). No effects on muscle color were observed (P〉0.05). Electrical stimulation was clearly benejicial and hot-processing was clearly detrimental to lambpalatability. The beneficial effects of electrical stimulation, however, were not effective in either preventing or offsetting the detrimental effects of hot-processing. Moreover, electrical stimulation alone and in combination with hot-processing produced only minor effects on consumer acceptance.

Electronic Resource

1089-7690

AIP Digital Archive

Physics

Chemistry and Pharmacology

The vibrational predissociation dynamics of a collinear model of the I2(v)He cluster is studied by numerically exact time-dependent quantum mechanics, and by the time-dependent self-consistent field (TDSCF) approximation. The time evolution for the initial excitation levels v=5, 11, 22 is explored. Excellent agreement is found between the TDSCF and the exact evolution of the wave packet; in particular the approximation reproduces well the dephasing events in the dynamics, and the measurable predissociation lifetimes. The results are very encouraging as to the applicability of quantum TDSCF as a quantitative tool in the study of van der Waals predissociation dynamics.

Electronic Resource

1365-2230

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Electronic Resource

1365-2958

Blackwell Publishing Journal Backfiles 1879-2005

Biology

Medicine

The photosynthetic apparatus of Rhodobacter sphaeroides is comprised of three types of pigment-protein complex: the photochemical reaction centre and its attendant LH1 and LH2 light-harvesting complexes. To augment existing deletion/insertion mutants in the genes coding for these complexes we have constructed two further mutants, one of which is a novel double mutant which is devoid of all three types of complex. We have also constructed vectors for the expression of either LH1, LH2 or reaction-centre genes. The resulting system allows each pigment-protein complex to be studied either as part of an intact photosystem or as the sole complex in the cell. In this way we have demonstrated that reaction centres can assemble independently of either light-harvesting complex in R sphaeroides. In addition, the isolation of derivatives of the deletion/insertion mutants exhibiting spontaneous mutations in carotenoid biosynthesis provides an avenue for examining the role of carotenoids in the assembly of the photo-synthetic apparatus. We show that the LH1 complex is assembled regardless of the carotenoid background, and that the type of carotenoid present modifies the absorbance of the LH1 bacteriochlorophylls.

Electronic Resource

1365-2761

Blackwell Publishing Journal Backfiles 1879-2005

Biology

Medicine

A bacteriocin-like inhibitory substance (BLIS) produced by Aeromonas media strain A199 inhibited the growth of Saprolegnia sp. in vitro, an opportunistic pathogen isolated from affected eels, Anguilla australis (Richardson). The presence of BLIS in solid media inhibited the growth of the vegetative state of the aquatic mould as well as the germination of cysts. Uninhibited growth was, however, observed in the presence of inactive BLIS, suggesting that the in vitro antagonism derived from the BLIS of A199. In four independent in vivo tank observations of fish affected with saprolegniosis, the daily addition of A199 to tank water contributed to the subsequent swift recovery of affected hosts from invasion by this opportunistic pathogen.

Electronic Resource

1365-3059

Blackwell Publishing Journal Backfiles 1879-2005

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

The use of soil-surface applications of finely powdered calcium hydroxide (Ca(OH)2) to inhibit Sclerotinia minor sclerotial germination and infection at the collar region of lettuce plants is described. In the laboratory, a pH 〉 8·0 reduced sclerotial germination of the three S. minor isolates tested. In the glasshouse, surface applications of 2–10 t Ca(OH)2 ha−1 raised the pH of the top 1–2 cm of a duplex sandy loam soil above 8·5 for at least 8 weeks without affecting soil pH within the transplant root zone. There was a linear relationship between the rate of Ca(OH)2 applied and disease control, with complete disease suppression at 10 t Ca(OH)2 ha−1. In field trials on two soil types (duplex sandy loam, pH 6·0; and red ferrosol, pH 6·9), a rate of 2·5 t Ca(OH)2 ha−1, maintained soil-surface pH above 8·5 for 1–3 weeks and provided up to 58% reduction in lettuce drop. Application of polyvinyl alcohol (a soil-conditioning polymer) over the Ca(OH)2 layer appeared to reduce Ca(OH)2 loss by wind, but did not improve retention of raised soil-surface pH or disease suppression. Ca(OH)2 treatment gave similar disease control to the industry standard treatment of a procymidone-based fungicide seedling drench. A combined treatment of Ca(OH)2 and fungicide drench gave greater control than either individual treatment, and equivalent control to fungicide drench and three procymidone foliar sprays, offering integrated management options. The use of soil-surface-applied Ca(OH)2 with fungicides, rotation and drip irrigation offers an opportunity for enhanced and sustainable control of lettuce drop.

Electronic Resource

0009-8981

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Medicine

Electronic Resource

0007-0882

Natural Sciences in General

Philosophy

DISCUSSIONS

0306-9192

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Process Engineering, Biotechnology, Nutrition Technology

Economics

Electronic Resource

1359-5997

Springer Online Journal Archives 1860-2000

Architecture, Civil Engineering, Surveying

Abstract The strain energy release rate is used to give a criterion for debonding in structural sandwich beams with isotropic faces and a foam core. The critical strain energy release rate of the interface is measured on double-shear specimens and the results of the debonding analysis are compared with experiments on sandwich beams with aluminium faces and foamed polyurethane cores. The analysis describes debonding failure well. Comparison of the load for bebonding with that for other failure modes shows that debonding occurs only if relatively large cracks exist at the interface between the face and the core.

Electronic Resource

0169-2046

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Architecture, Civil Engineering, Surveying

Geography

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Electronic Resource

0165-4608

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Medicine

Electronic Resource