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CONTEXT Carcinoma of the esophagus traditionally has been treated by surgery or radiation therapy (RT), but 5-year overall survival rates have been only 5% to 10%. We previously reported results of a study conducted from January 1986 to April 1990 of combined chemotherapy and RT vs RT alone when an interim analysis revealed significant benefit for combined(More)
Teat cup liner slips, manual milking machine adjustments, milk yields, and milking times were recorded during both morning and evening milkings for 8 d on 97 Holstein cows in The Pennsylvania State University dairy herd. Fore and rear udder heights (distance from floor to udder), udder levelness, distances between teats (before and after milking), teat(More)
Eighteen dairy herds were studied, 12 with a 12-month Dairy Herd Improvement Association herd mean somatic cell count (SCC) less than or equal to 150,000 cells/ml (low SCC) and 6 with a 12-month mean SCC greater than 700,000 cells/ml (high SCC). At the outset of the study, quarter samples for bacteriologic culture were collected (in duplicate) from all(More)
Thirty-two dairy herds, 16 with low somatic cell counts (LSCC; Dairy Herd Improvement Association 12-month mean herd SCC less than or equal to 150,000 cells/ml) and 16 with high somatic cell counts (HSCC; Dairy Herd Improvement Association 12-month mean herd SCC greater than or equal to 700,000 cells/ml) were evaluated to determine the relationship between(More)
New IMI of cows milked with high and low slip rate milking machine liners were compared. High slip liners used in this study averaged 6.1 initial slips and 7.6 major vacuum fluctuations per cow milking, and low slip liners averaged 3.6 initial slips and 3.1 major vacuum fluctuations per cow milking. Least squares means for new IMI rates per 100 cow days(More)
Histories of 4 dairy herds with increased incidence of Pseudomonas mastitis associated with contaminated wash hoses in milking parlors are described. Problems of detection and elimination of the organism from contaminated water sources and the inadequacy of iodide germicides in eliminating Pseudomonas are discussed. In problem herds, greater numbers of(More)
The objective of this study was to measure liner wall movement and define the characteristics of pulsation. The cyclic opening and closing of the milking machine liner is called "Pulsation." The liner opening and closing is a consequence of the differential pressures across the walls of the liner barrel. Liner wall movement was measured in the laboratory(More)
The vacuum and teat-cup chamber ratio are important operating parameters that affect milking performance by milking machines. In addition, the design and composition of materials are major elements affecting the performance characteristics of (teat-cup) milking machine liners. The objective of this experiment was to determine the effects of vacuum and(More)
Effect of an automatic iodine (15 ppm) backflushing system on incidence of new intramammary infections, teatcup liner bacterial populations, and milk iodine was tested in a herd free of Streptococcus agalactiae and with a low prevalence of Staphylococcus aureus. In an 11-mo trial, backflushing was applied to teatcups that milked the right half of the udder;(More)
The objective of this study was to evaluate an alternative neonatal extracorporeal life support (ECLS) circuit with a RotaFlow centrifugal pump and Better-Bladder (BB) for hemodynamic performance and gaseous microemboli (GME) capture in a simulated neonatal ECLS system. The circuit consisted of a Maquet RotaFlow centrifugal pump, a Quadrox-iD Pediatric(More)