M.H. Oyevaar, K.R. Westerterp,
The interfacial area achem in a gas—liquid contactor as determined by the chemical method deviates from the true geometrical interfacial area ageo, ... residence times are not uniform. The deviations of achem fromageo become larger the broader the distribution τb/ ... effect of bubble coalescence on the deviation of achem from ageo, are performed for a mechanically agitated ... for a mechanically agitated reactor the error in achem will always be smaller than 10% if ΩA ... 2) for a bubble column the error in achem will be smaller than 20% for most practical ...
Tópico(s): Process Optimization and Integration
1989 - Elsevier BV | Chemical Engineering Science
... 3Klaus A. Hinder R.A. DeVault K.R. Achem S.R. Bowel dysfunction after laparoscopic antireflux surgery ... 3Klaus A. Hinder R.A. DeVault K.R. Achem S.R. Bowel dysfunction after laparoscopic antireflux surgery ... 3Klaus A. Hinder R.A. DeVault K.R. Achem S.R. Bowel dysfunction after laparoscopic antireflux surgery ... 3Klaus A. Hinder R.A. DeVault K.R. Achem S.R. Bowel dysfunction after laparoscopic antireflux surgery ...
Tópico(s): Helicobacter pylori-related gastroenterology studies
2003 - Elsevier BV | The American Journal of Medicine
Mohit Katragadda, Sean P. Malkeson, Nilanjan Chakraborty,
... effects of strain rate induced by heat release achem overcome the effects of turbulent straining aturb. By ... the effects of aturb overcomes the effects of achem for low Da flames with Le⩾1, which ... towards the burned gas side due to strong achem overcoming aturb in the regions of intense heat release. The strengthening of the dilatation rate and achem at small and large values of Le and ...
Tópico(s): Advanced Combustion Engine Technologies
2010 - Elsevier BV | Proceedings of the Combustion Institute
... eel acetylcholinesterase (AChE) which was either membrane-bound (AChEm) or solubilized (AChEs), similar kinetics were seen in ... F, the relative rate of substrate hydrolysis by AChEm was reduced more rapidly than with AChEs, whether ... a Hill coefficient of 1.0, whereas with AChEm the Hill coefficient changed from 0.8 to ...
Tópico(s): Enzyme function and inhibition
1974 - Elsevier BV | Biochemical Pharmacology
Adrian Schumpe, W.‐D. Deckwer,
... bubbles this is not permitted. The deviation of achem from ageo is larger the broader the distribution ... operated as differential reactor. For a difference of achem from ageo less than 15% the conversion in ... efficient experimentation, however, it guarantees negligible difference of achem from ageo for most practical applications.
Tópico(s): Carbon Dioxide Capture Technologies
1980 - Elsevier BV | Chemical Engineering Science
... 422-427PubMed Google Scholar, 18Kolts BE Lyles WE Achem SR Burton L Geller AJ MacMath T. A ... PDF PubMed Google Scholar, 18Kolts BE Lyles WE Achem SR Burton L Geller AJ MacMath T. A ... was similar for each.18Kolts BE Lyles WE Achem SR Burton L Geller AJ MacMath T. A ...
Tópico(s): Colorectal Cancer Screening and Detection
1996 - Elsevier BV | Gastrointestinal Endoscopy
John Stauffer, Kyle K. Shaddix, S. R. Achem, M. Elena Stark, Anthony B. Adelson, Philip P. Metzger, R. Landmann,
... SurgerySearch for more papers by this authorS. R. Achem, S. R. Achem GastroenterologySearch for more papers by this authorM. Stark, ... SurgerySearch for more papers by this authorS. R. Achem, S. R. Achem GastroenterologySearch for more papers by this authorM. Stark, ...
Tópico(s): Esophageal and GI Pathology
2010 - Wiley | Colorectal Disease
Adam Faulconbridge, Susan Stepney, Julian F. Miller, Leo S. D. Caves,
An Artificial Chemistry (AChem) is a set of components and interactions that result in a composable system. Ideally, the system is rich, and ... properties. We present a methodology for discovering interesting AChems through a series of tests that probe elementary ...
Tópico(s): Gene Regulatory Network Analysis
2010 - The MIT Press | Artificial Life
Aaron I. Vinik, Braxton D. Mitchell,
... Diabetologia 26: 449–452, 1984. 148 Vinik AI, Achem-Karam S, and Owyang C: Gastrointestinal hormones in ... New York, Alan R. Liss, Inc., 1983. 149 Achem-Karam SR, Funakoshi A, Vinik AI, and Owyang ...
Tópico(s): Pancreatitis Pathology and Treatment
1988 - Wiley | Diabetes/Metabolism Reviews
A Cristina Achem, Sami R. Achem, Mark E. Stark, Kenneth R. DeVault,
Gastroesophageal reflux disease (GERD) is common in all ages, but its prevalence appears to increase with age. Older patients often need aggressive medical therapy and are frequently being considered for antireflux surgery. We sought to evaluate the physiological defect (lower esophageal sphincter [LES] pressures, esophageal motility, and acid exposure) in a group of GERD patients >or= 65 yr old in comparison with a younger population ( or=65 yr old and the control group of those <or=40 yr old. Each group ...
Tópico(s): Eosinophilic Esophagitis
2003 - Lippincott Williams & Wilkins | The American Journal of Gastroenterology
Tsutomu Oohashi, Osamu Ueno, Tadao Maekawa, Norie Kawai, Emi Nishina, Manabu Honda,
Under the AChem paradigm and the programmed self-decomposition (PSD) model, we propose a hierarchical model for the biomolecular covalent bond ( ... existent terrestrial life, and simulation experiments using an AChem system. Biological experiments have shown that terrestrial life ...
Tópico(s): Gene Regulatory Network Analysis
2008 - The MIT Press | Artificial Life
... prevalent? This led me to organize the 2006 AChemS Presidential Symposium on the topic, Why have adult ...
Tópico(s): MicroRNA in disease regulation
2007 - Oxford University Press | Chemical Senses
... Annual Meeting of the Association for Chemoreception Sciences (AChemS XV) Get access Chemical Senses, Volume 18, Issue ...
Tópico(s): Various Chemistry Research Topics
1993 - Oxford University Press | Chemical Senses
... 422-427PubMed Google Scholar, 2Kolts BE Lyles WE Achem SR Burton L Geller AJ MacMath T A ... 422-427PubMed Google Scholar, 2Kolts BE Lyles WE Achem SR Burton L Geller AJ MacMath T A ...
Tópico(s): Mycobacterium research and diagnosis
1995 - Elsevier BV | Gastrointestinal Endoscopy
... times that led up to the founding of AChemS and fashioned its character during its early formative years. It describes the path over which AChemS came, going from the original assertions and denials ... topics as the debate over the need for AChemS, the role of National Science Foundation in the founding of AChemS, the derivation of the Association's name, the ... of the chemosensory research community displayed in bringing AChemS to fruition.
Tópico(s): Various Chemistry Research Topics
1998 - Oxford University Press | Chemical Senses
David E. Lenz, Donald M. Maxwell, Miriam Walden,
... eel acetylcholinesterase (AChE) which was either membrane-bound (AChEm) or solubilized (AChEs), similar kinetics were seen in ... F, the relative rate of substrate hydrolysis by AChEm was reduced more rapidly than with AChEs, whether ... a Hill coefficient of 1.0, whereas with AChEm the Hill coefficient changed from 0.8 to ...
Tópico(s): Environmental Toxicology and Ecotoxicology
1984 - Elsevier BV | Life Sciences
... David Guest for special services they freely offered. Achem Corporation, Ambler, Pennsylvania, supplied the granular applicator, and ...
Tópico(s): Toxic Organic Pollutants Impact
1968 - Wiley | Journal of Wildlife Management
Chung Owyang, Sami R. Achem-Karam, Aaron I. Vinik,
There is a good correlation between pancreatic polypeptide release and pancreatic exocrine secretion in response to hormone and nutrient stimulation. During interdigestive periods, cyclic fluctuations of pancreatic and biliary secretions are associated with maximal activity (phase 3) of the intestinal migrating motor complex. In this study we determined whether the changes in fasting plasma pancreatic polypeptide levels are associated with secretory and motor events in the duodenum and the role of ...
Tópico(s): Diet and metabolism studies
1983 - Elsevier BV | Gastroenterology
Sami R. Achem-Karam, Akihiro Funakoshi, Aaron I. Vinik, Chung Owyang,
The objective of this study is to determine whether abnormal rhythm and amplitude of the oscillation in plasma motilin concentration are responsible for the abnormal motility observed in patients with diabetic gastroparesis. We also investigated the effect of metoclopramide on plasma motilin concentration and gastrointestinal motility in these patients. In healthy controls, basal plasma motilin concentration fluctuated in phase with the interdigestive migrating motor complex. All patients with diabetic ...
Tópico(s): Dermatology and Skin Diseases
1985 - Elsevier BV | Gastroenterology
Ira A. Cohen, Cary E. Johnson, Rosemary R. Berardi, Martha L. Hyneck, Sami R. Achem,
Influences of cimetidine dose and age on the cimetidine-theophylline interaction were evaluated. Group Y consisted of nine young adults, aged 22-35 years, and Group O of nine elderly adults, aged 60-74 years. Each subject completed three study phases in this randomized crossover study. During Phase A, oral dosing of 5 mg/kg theophylline was followed by 14 serial blood samples drawn over 36 h. Phases B and C involved the same procedures, but with oral cimetidine treatment of either 200 or 300 mg ...
Tópico(s): Phenothiazines and Benzothiazines Synthesis and Activities
1985 - Lippincott Williams & Wilkins | Therapeutic Drug Monitoring
Tópico(s): Asian Studies and History
1990 - Association Archipel | Archipel
Sami R. Achem, Chung Owyang, Michael D. Schuffler, William O. Dobbins,
We report a patient with an unusual cause of chronic intestinal pseudoobstruction, i.e., neuronal intestinal dysplasia. This disorder is characterized by hyperplasia of the nerve plexuses of the intestine or colon, or both. Detailed morphologic and manometric studies are provided. The discussion emphasizes the various motor abnormalities that may be found in chronic intestinal pseudoobstruction. We propose that rectal biopsy may be of value in the diagnosis of this unusual form of pseudoobstruction.
Tópico(s): Intestinal and Peritoneal Adhesions
1987 - Elsevier BV | Gastroenterology
Tópico(s): Olfactory and Sensory Function Studies
1988 - Oxford University Press | Chemical Senses
Cristina Almansa, Murli Krishna, Anna M. Buchner, Marwan Ghabril, Nicholas J. Talley, Kenneth R. DeVault, Herbert C. Wolfsen, Massimo Raimondo, Juan Guarderas, Sami R. Achem,
The etiology of eosinophilic esophagitis (EoE) is not well understood. It has been proposed that eosinophils migrate to the esophagus in response to various ingested and inhaled allergens. Recent reports in children found an increased proportion of cases of EoE during months with higher outdoor aeroallergens. To our knowledge, this has not been evaluated in adults. We aimed to determine whether there is a seasonal distribution in the number of newly diagnosed cases of EoE in an adult population.We ...
Tópico(s): Eosinophilic Disorders and Syndromes
2009 - Lippincott Williams & Wilkins | The American Journal of Gastroenterology
Donald A. Wilson, Harriet Baker, Peter C. Brunjes, Timothy A. Gilbertson, Linda Hermer, David L. Hill, Hiroaki Matsunami, Michael Meredith, Charlotte M. Mistretta, Monique A. M. Smeets, Lisa Stowers, Hanyi Zhuang,
The 31st Annual Association for Chemoreception Sciences (AChemS) met in Sarasota, Florida April 22-26, 2009, attracting approximately 600 registrants and nearly 400 abstracts. In addition to poster and platform presentations, ...
Tópico(s): Photochromic and Fluorescence Chemistry
2009 - Wiley | Annals of the New York Academy of Sciences
Tópico(s): Advanced Chemical Sensor Technologies
1992 - Oxford University Press | Chemical Senses
... Am J Physiol 260: E67– 74, 1991 3 Achem-Karam SR, Funakoshi A, Vinik AI: Plasma motilin ...
Tópico(s): Parkinson's Disease Mechanisms and Treatments
1992 - Wiley | Muscle & Nerve
Sami R. Achem, Byron E. Kolts,
Treatment of patients with an esophageal source of chest pain remains a challenging problem. Although a variety of measures—including nitrates, anticholinergics, sedatives, calcium channel antagonists, esophageal dilation, and psychological reassurance—are available for the management of esophageal chest pain, none has emerged as the treatment of choice. Studies of nitrate preparations for the treatment of painful motility disorders are limited by a small number of patients and the lack of randomized, ...
Tópico(s): Fluorine in Organic Chemistry
1992 - Elsevier BV | The American Journal of Medicine
Sami R. Achem, Byron E. Kolts, John Grisnik, Terry L. MacMath, Carmela B. Monterio, Jeffrey Goldstein,
Surgicale describe a 40-year-old black North American woman with isolated hepatic tuberculosis and an incidentally elevated alkaline phosphatase. Imaging studies of the liver showed a lesion suggesting primary or metastatic disease, which turned out to be the so-called pseudotumoral form of hepatic tuberculosis. We believe this is the first case recorded in the English language literature of isolated hepatic tuberculosis manifesting first as an incidentally elevated alkaline phosphatase. It seems ...
Tópico(s): Amoebic Infections and Treatments
1992 - Lippincott Williams & Wilkins | Journal of Clinical Gastroenterology
T. Bammer, M. E. Freeman, Ali Shahriari, Ronald A. Hinder, Kenneth R. DeVault, Sami R. Achem,
Tópico(s): Gastroesophageal reflux and treatments
2002 - Springer Science+Business Media | Journal of Gastrointestinal Surgery