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Wiernusz C J - - 1996
1. Two experiments were conducted to quantify heat stress (HS) acclimation effects on heat production (H), evaporative heat loss (E), sensible heat loss (S) and change in heat content (HC) of 24 food-deprived and precision fed broilers. 2. In experiment 1, heat stressed fasted HS acclimated birds (group 1) exhibited ...
Rose M D - - 1996
The heat stability of oxytetracycline (OTC) in water and vegetable oil was investigated. Results showed that the drug was unstable in water at 100 degrees C with a half-life of about 2 min, but more stable in oil at 180 degrees C where the half-life was about 8 min. The ...
Bergeron M F - - 1996
A 17-year-old, nationally ranked, male tennis player (AH) had been experiencing heat cramps during tennis match play. His medical history and previous physical exams were unremarkable, and his in-office blood chemistry profiles were normal. On-court evaluation and an analysis of a 3-day dietary record revealed that AH's sweat rate was ...
Giebink D L - - 1996
Simulated clinical conditions were used to test the effect of sterilization on rubber-dam clamp stiffness and dimension. Sixty Hygienic and Ivory W7 clamps were either steam or dry heat sterilized and compared to controls. Stiffness and dimensional change between Ivory clamp groups was significant (p<.0001); the sterilized clamps showed less ...
Amigó J M - - 1996
Food contamination with respect to microsporidiosis in humans (associated with acquired immunodeficiency syndrome) and in marine fish farming deserves particular attention. For the first time, a study on the longevity and resistance to both heat and freezing of the spores of a vertebrate microsporidian, Glugea stephani, parasitizing a commercial flatfish ...
Curzon M E - - 1996
Assessment of the acido/cariogenicity of 11 fruits and cereals was carried out using methods recommended at the San Antonio Conference: plaque pH by sampling (PS), indwelling electrode (IDE) and intra-oral cariogenicity test (ICT), together with additional tests of the total carbohydrate content of salivary expectorants, acid anion profiles of plaque, ...
Ohtsubo T - - 1996
To discover the point of maximum interactive effect, we examined the time sequence of high (above (42.5 degrees C) or low (below 42.5 degrees C) -hyperthermia and cis-diammine dichloroplatinum (II) (CDDP). Simultaneous or post-hyperthermic CDDP (0.5 micrograms/ml) treatment at 43 degrees C resulted in a slight synergistic effect, with thermoenhancement ...
Fedorov V V - - 1995
The shape of the plaque pH-profile after consumption of a food item determines the food's potential caries risk. This and related facts have caused an increased interest in measurements of plaque pH-profiles during the last decade. A standard design for these measurements is to take equally spaced observations over a ...
Marathaki E - - 1995
An investigation into the acidogenic potential of six of the most commonly used sugar-containing and sugar-free paediatric medicines was carried out on 10 adult volunteers. The guidelines of the Food, Nutrition and Dental Health Committee of the American Dental Association were followed. Subjects refrained from brushing their teeth for 48 ...
Jensen L - - 1995
We conducted 215 evaluations for plaque, stain, and calculus in 120 dogs at two research sites. Dogs were balanced in groups of five according to baseline plaque index scores; groups were randomly assigned to treatment or control dietary regimens. Dental cleanings were done on Day 0. Dogs in the treatment ...
Viswanathan P - - 1995
The effect of polyols (ethylene glycol, glycerol, erythritol, xylitol and sorbitol) on partially purified inulinase from Aspergillus niger van Teighem mutant grown on Kuth (Saussurea lappa) root as source of inulin was determined. Seventy per cent of inulinase activity was retained in the presence of 4 mol l-1 sorbitol at ...
Paruszewski R - - 1995
Four new compounds: Nic-Phe/4-OMe/-MePhe-Sta-epsilonAhx-OMe/23/,Nic-Phe/4-OMe/-MePhe- Sta-epsilonAhx-Iaa/24/,iNic-Phe/4-OMe/-MeLeu-Sta-ep silonAhx-OMe/29/ and iNic-Phe/4-OMe/-MeLeu-Sta-epsilonAhx-Iaa/30/ have been synthesized in search after renin inhibitors of improved biological properties. Their stability against chymotrypsin activity, solubility in water at pH 7.4, 6.9 and 2.0, partition coefficient and activity in vitro were determined. All synthesized inhibitors are resistant to enzymatic degradation, ...
Taylor F - - 1995
Recycling the contents of a continuous fermentor through a stripping column is proposed as a means of reducing product inhibition and lowering the cost of fuel ethanol production. A 2-L fermentor and 10-cm packed column were continuously operated for 150 days without contamination. Some fouling of the packing with attached ...
Zeng F Y - - 1995
We previously showed that two subpopulations of asialoglycoprotein receptors (ASGP-Rs), designated State 1 and State 2 ASGP-Rs, are present in intact cells and that State 2 ASGP-Rs can be inactivated in permeable rat hepatocytes in a temperature- and ATP-dependent manner. These inactivated ASGP-Rs can be quantitatively reactivated by the addition ...
Patch M A - - 1995
Facilities and equipment which are contaminated by a diseased carcass during slaughter and processing operations must be made free from microorganisms of human health concern before being used again. Therefore, a rapid-acting microbicidal agent is necessary to enable the swift resumption of operations. Currently, water heated to 180 degrees F ...
van Diemen P M - - 1995
Effects of moderate, artificially induced atrophic rhinitis symptoms on level and changes in heat production and activity were determined in pigs kept under different climatic conditions. Eight groups of 30 pigs each, housed in one of two climatically controlled respiration chambers, were exposed to a 2 x 2 factorial arrangement ...
Olsson K - - 1995
Water intake was studied in six goats during late pregnancy to investigate if heat stress induces primary polydipsia. The goats were fed twice daily or deprived of food for 24 hr to avoid postprandial drinking and induce hyponatremia. Signs of stress was evaluated by determination of plasma cortisol concentration. Ambient ...
Hendrickx M - - 1995
In this review, current methods used to evaluate the integrated impact of time and temperature upon preserving a food product by a heat treatment are considered. After identifying the basic premise any preservation scheme shall meet, the central role of a feasible description for the heat activation kinetics of microorganisms, ...
Saxer U P - - 1995
In this study on 60 adult subjects, the effective of Parodontax, a dentifrice containing herbal ingredients and sodium bicarbonate abrasive, was compared to a non-marketed new toothpaste containing herbal ingredients and calcium hydrogen phosphate as the abrasive. Plaque, gingivitis and gingival bleeding parameters were scored. The periodontal probe bleeding index ...
Bergeron M F - - 1995
A tennis player's metabolism during play in a hot environment generates an abundance of heat, which is primarily eliminated from the body by evaporation of sweat. An individual's on-court rate of fluid loss will depend on the environmental conditions, intensity of play, acclimatization, aerobic fitness, hydration status, age, and gender. ...
Pollard M A - - 1995
The cariogenicity of starches and fruits was investigated by measuring acidogenicity (plaque sampling) and enamel demineralization. Test foods were oranges, apples, bananas, Cornflakes, Branflakes, Weetabix, Alpen (no added sugar), white bread, wholemeal bread, rice, and spaghetti, with positive and negative controls of sucrose and sorbitol. Plaque sampling indicated that all ...
Lingström P - - 1994
The aim of this study was to monitor pH in 2-day-old dental plaque after administration of a long-acting, lactose-containing nitroglycerin tablet (Suscard). The tablet was placed under the lip of the maxilla. This was done both in two older subjects suffering from heart problems and in 10 younger, healthy subjects. ...
Sakai T - - 1994
Two male workers were acutely intoxicated with gas produced by heating tar epoxy resin paint, and developed peripheral neuropathy. To assess the work atmosphere, we analyzed the degradation products by GC-MS. The major toxic products emitted by heating tar epoxy resin were hydrogen cyanide, phenol, and benzene, as well as ...
Herpin P - - 1994
Heat production was continuously measured from birth to 24 h after birth in pigs tube-fed 14 g kg-1 of colostrum or water (sham-fed animals) at hourly intervals, and maintained at thermoneutrality (34 degrees C) or in moderate cold (24 degrees C). Results indicate that colostrum was necessary to initiate and ...
Ellison A - - 1994
Inactivation of micro-organisms by heat is a traditional food processing technique used to reduce or eliminate the microbial load in foods thus preventing bacterial associated disease and food spoilage. Models of thermal death kinetics are routinely used to predict the amount of heat required but such models are limited by ...
Kihm D J - - 1994
Listeria monocytogenes was highly resistant to hen egg white lysozyme in whole milk but was sensitive in media and in phosphate buffer. Methods to sensitize the pathogen to lysozyme in milk were investigated. Treatment of whole milk by cation exchange to remove minerals, particularly Ca2+ and Mg2+, slightly promoted inactivation ...
Rainey D W - - 1994
This study surveyed 782 certified baseball and softball umpires from randomly chosen umpire associations in one state to assess how much stress they experienced while officiating. The mean stress score was between "very little" and "a moderate amount," although 4.5% of the respondents reported "quite a bit" or "a great ...
Bowen W H - - 1994
For many decades, sugars have been the dietary constituents receiving the most attention in relation to their effects on dental caries. Frequently, however, there is little relationship between the amount of sugar in a food and its ability to induce caries. Therefore, it is clear that constituents in the diet ...
Geddes D A - - 1994
Few dietary studies have been designed to investigate the effects of intake patterns of food items upon the environment of the teeth. This brief review considers evidence about the effects of choice, combination, and sequence of ingested food and drink upon the pH of human dental plaque in vivo. A ...
Armstrong D V - - 1994
Hot weather causes heat stress in dairy cattle. Although effects are more severe in hot climates, dairy cattle in areas with relatively moderate climates also are exposed to periods of heat stress. The resultant decrease in milk production and reproductive efficiency can be offset by implementation of a program consisting ...
West J W - - 1994
Heat stress, resulting when dairy cows are exposed to hot or to hot and humid environmental conditions, reduces DMI and milk yield and increases maintenance costs of the cow. Decreased DMI may help to maintain homeothermy through reduced metabolic heat production. The high yielding cow has greater metabolic activity and ...
Nwaka S - - 1994
During heat stress, trehalose concentration increases in yeast cells in parallel to thermotolerance. This parallelism suggested that trehalose mediated thermotolerance. We show in this work that, under certain conditions, trehalose accumulation and increase in thermotolerance do not go in parallel. A mutant deficient in the trehalose-degrading neutral trehalase shows, after ...
Pizzimenti K V - - 1994
OBJECTIVE: To determine the effects of form, heating equipment, and storage time on sensory characteristics of beef stew packaged in a plastic bag currently marketed for foodservice systems. DESIGN: A factorial design was used to consider differences in food quality related to (a) form for reheating, including bulk in bag, ...
Kort H S - - 1994
For almost 4 years, the stability of Der p I was assessed by RAST inhibition in house-dust samples incubated under simulated domestic conditions (5 or 25 degrees C and 75% relative humidity). Der p I concentrations were determined before heating dust samples at 60 degrees C to kill the mites, ...
Ooshima T - - 1994
The inhibitory effect of oolong tea extract (OTE) containing polymerized polyphenols on plaque deposition was examined in 35 human volunteers. Thirty-five human volunteers, aged 18-29 years, who received extensive oral prophylactic procedures were requested to refrain from all oral hygiene procedures for 4 days, and to rinse their mouth with ...
Kashket S - - 1994
There is considerable evidence for an association between dental caries and food starches. However, the intraoral utilization of starch may be quite complex, giving rise to conflicting results. Demineralization induced by unsweetened cookies was examined in an intraoral model system that utilized palatal appliances containing blocks of bovine enamel. The ...
McNeal T P - - 1993
Microwave heat susceptors that convert electromagnetic energy to heat attain high temperatures that make it possible to cook some foods to golden crispness in a microwave oven. Susceptors are typically packaged with foods intended for microwave use, e.g., waffles, pizzas, and french fries. The high temperatures > 302 degrees F ...
Garc??a-Villanova R J - - 1993
Diacetyl and 2,3-pentanedione react with isoniazide in acidified solutions to give the corresponding hydrazones which, by reacting with a zirconium (IV) salt, form fluorescent complexes. Both reactions have been studied separately. Variables such as pH, heating time, and excess of reactives are discussed. The method may be used for the ...
Buyse J - - 1993
1. Diurnal-nocturnal changes in food intake, gut storage of ingesta, food transit time and heat production were studied in male broiler chickens reared under a 14L:10D lighting schedule (lights on from 06.00 to 20.00 h). 2. Food consumption during the scotophase was negligible. Peak food consumption during the photoperiod occurred ...
Jickells S M - - 1993
Benzene in poly(tetrafluoroethylene) (PTFE) coatings of nonstick cookware was determined by heating a small amount of coating in a sealed vial. Gas chromatography/mass spectrometry (GC/MS) was used to analyze the vial headspace for benzene. A small survey (26 samples) of retail nonstick cookware detected benzene ranging from 2 to 50 ...
Nishikawa Y - - 1993
The present study was undertaken to compare the heat and acid sensitivity of aeromonads with those of other food-poisoning bacteria. It became obvious that aeromonads were more sensitive to heat than Escherichia coli O157:H7, Staphylococcus aureus, and Salmonella typhimurium. Aeromonads were killed in peptone water within 2 min at 55 ...
Rozemuller A J - - 1993
Brain amyloidosis with abundant beta/A4 protein deposition in plaques and cortical and meningeal vessels is found in Alzheimer's disease (AD) and hereditary cerebral hemorrhage with amyloidosis-Dutch type (HCHWA-D). In contrast to AD, no neuritic pathology or classical congophilic plaques are found in HCHWA-D. Unlike most AD cases, the congophilic angiopathy ...
Yue S - - 1993
A series of five experiments were done to investigate the relationship between bacterial plaque and enamel caries: 1) Topographic examination of the distribution of plaque and initial enamel caies demonstrated a close relationship between these two. 2) By using a method of caries-like lesion production in vitro, it was shown ...
Binney A - - 1993
Chemical plaque removal is one mechanism whereby an agent could improve oral hygiene and gingival health. As with toothpastes most agents, when delivered as rinses, would be considered adjunctive to mechanical tooth cleaning procedures. The aim of this study was to determine whether selected commercial rinses exhibited clinically significant plaque ...
Radosevich J A - - 1993
This report describes a new method using 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) to visualize live viable tissue at the microscopic level. The visualization of the MTT stained tissue provides a metabolic assessment of tissue damage, and can be utilized as an extension of conventional hematoxylin-eosin (H & E) staining. In this report, ...
Kutlu H R - - 1993
Female broiler chicks were given red and green supplemented (200 mg ascorbic acid (AA)/kg) and unsupplemented foods on alternate days for 8 days under heat-stressed and unstressed conditions. After this training period, the birds were given access to both foods, and the intake of each was monitored. In both heated ...
Leikanger S - - 1992
The aims of the present study were to assess the consumption of food preservatives during the last decades, and to study the effect of the preservatives, sorbic and benzoic acid, on growth and glycolysis of oral bacteria in vitro, and on acid formation by dental plaque in vivo. Five consumption ...
Weiger R - - 1992
Comparisons between plaque index (PlI) and bacterial counts have been made already; however, these did not take into account the area used for plaque sampling. The objective of the present study was to determine the correlation between the PlI score, the number of bacteria and the bacterial plaque vitality when ...
Renström B - - 1992
A product which has been heavily promoted for a number of years is an aluminized plastic foil designed to reflect 80% of body heat. However, a large body of experience points to the following: 1. A minimal amount of heat is radiated by a clothed body. This can easily be ...
Pierzynowski S - - 1992
Antibacterial activity of pancreatic juice in the pig (n = 8) was investigated during early postnatal development and in cattle (n = 6) receiving a different feeding regimen. For pancreatic juice collection, a catheter was surgically implanted in the pancreatic duct. Reintroduction of pancreatic juice was achieved through a T-shaped ...
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