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International Journal of Sediment Research 2009年第1期24卷 88-98页

作者： T. Pnek J. HRADECKY K. ILHN Assoc. University of Ostrava Faculty of Science Department of Physical Geography and Geoecology Chittussiho 10 71000 Ostrava Czech Republic University of Ostrava Faculty of Science Department of Physical Geography and Geoecology Chittussiho 10 71000 Ostrava Czech Republic

Ancient flow type landslides are relatively frequent fossil forms of the relief in mid-mountain conditions of the Czech Carpathian Mountains. Sixty rather distinctive displays of debris flows,rock avalanches,and debris avalanches have been mapped in the uppermost part of the territory. Unlike contemporary sporadic and low volume debris flows,ancient(Pleistocene and Lower Holocene) accumulations are a few orders of magnitude more extensive and were of considerable geomorphologic significance in forming the steep sections of mountain valleys and slopes. This geomorphic pattern does not hold for flow type slides,the source of which is material released as a consequence of numerous deep-seated landslides. Due to deep disruption of slopes,a few high-magnitude flow type landslides(e.g.,rock avalanches),quite rare in flysch mid-mountain conditions,also occurred in the Late Holocene.

关键词： Debris flows Rock avalanches Deep-seated landslides Flysch Western Carpathian Mountains

Treatment of Helicobacter pylori

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World Journal of Gastroenterology 2001年第3期7卷 303-307页

作者： adam Harris Consultant Gastroenterologist Kent and Sussex HospitalTunbridge WellsKent TN4 8ATEngland

INTRODUCTIONUsing an evidence-based approach this review discusses the current treatment of Helicobacter pylori infection in patients with peptic ulcer disease, functional (non-ulcer)dyspepsia or gastro-oesophageal reflux disease (GORD).It also briefly addresses the potential role of eradication of H . pylori in preventing gastric cancer .

关键词： Anti-Bacterial Agents Helicobacter Infections Helicobacter pylori Humans Peptic Ulcer Virulence

Aging and the intestine

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World Journal of Gastroenterology 2006年第47期12卷 7578-7584页

作者： Laurie Drozdowski Alan br Thomson Nutrition and Metabolism Group University of Alberta Canada

Over the lifetime of the animal, there are many changes in the function of the body’s organ systems. In the gastrointestinal tract there is a general modest decline in the function of the esophagus, stomach, colon, pancreas and liver. In the small intestine, there may be subtle alterations in the intestinal morphology, as well as a decline in the uptake of fatty acids and sugars. The malabsorption may be partially reversed by aging glucagon-like peptide 2 (GLP2) or dexamethasone. Modifications in the type of lipids in the diet will influence the intestinal absorption of nutrients: for example, in mature rats a diet enriched with saturated as compared with polysaturated fatty acids will enhance lipid and sugar uptake, whereas in older animals the opposite effect is observed. Thus, the results of studies of the intestinal adaptation performed in mature rats does not necessarily apply in older animals. The age-associated malabsorption of nutrients that occurs with aging may be one of the several factors which contribute to the malnutrition that occurs with aging.

关键词： Aging Gastrointestinal tract Intestine Absorption Malnutrition

Intestinal hormones and growth factors:Effects on the small intestine

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World Journal of Gastroenterology 2009年第4期15卷 385-406页

作者： Laurie Drozdowski Alan br Thomson Division of Gastroenterology University of Alberta

There are various hormones and growth factors which may modify the intestinal absorption of nutrients, and which might thereby be useful in a therapeutic setting, such as in persons with short bowel syndrome. In part I, we focus first on insulin-like growth factors, epidermal and transferring growth factors, thyroid hormones and glucocorticosteroids. Part Ⅱ will detail the effects of glucagon-like peptide （GLP）-2 on intestinal absorption and adaptation, and the potential for an additive effect of GLP2 plus steroids.

关键词： Epidermal growth factor Glucocortico-steroids Insulin-like growth factor-I/Ⅱ Intestinalgrowth Transforming growth factor-α-2 Hepatocytegrowth factor Keratinocyte growth factor

The Continental Scale USMTArray:Lessons Learned and Synergies with SinoProbe-Ⅱ

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Acta Geologica Sinica(English Edition) 2024年第S1期98卷 51-52页

作者： adam SCHULTZ National Geoelectromagnetic Facility College of EarthOcean and Atmospheric SciencesOregon State UniversityCorvallisOR 97331-5503USA

The USMTArray was completed on June 27,2024,comprising a network of 1779 transportable long-period magnetotelluric(MT)stations(Fig.1)with nominal 70-km grid spacing spanning the conterminous United States,an area of 8.1×10^(6)km^(2).Each station operated for weeksto-months,as required to meet data quality standards over the period band of 10–10000 *** USMTArray shares similarities with the planned SinoProbe-II MT Array,with its 1-degree station spacing(~111 km in the latitudinal direction)spanning an area of 9.6×10^(6)km^(2).

关键词： USMTArray structure and evolution of continents monitoring magnetotelluric stations SinoProbe-II

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Intestinal sugar transport

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World Journal of Gastroenterology 2006年第11期12卷 1657-1670页

作者： Laurie A Drozdowski Alan br Thomson Division of Gastroenterology Department of Medicine University of Alberta5150 Dentistry Pharmacy BuildingEdmontonABT6G 2N8Canada 130 University Campus Division of Gastroenterology Department of MedicineUniversity of AlbertaZeidler Ledcor CenterEdmontonABT6G 2X8Canada

Carbohydrates are an important component of the diet. The carbohydrates that we ingest range from simple monosaccharides （glucose, fructose and galactose） to disaccharides （lactose, sucrose） to complex polysaccharides. Most carbohydrates are digested by salivary and pancreatic amylases, and are further broken down into monosaccharides by enzymes in the brush border membrane （BBM） of enterocytes. For example, lactase-phloridzin hydrolase and sucraseisomaltase are two disaccharidases involved in the hydrolysis of nutritionally important disaccharides. Once monosaccharides are presented to the BBM, mature enterocytes expressing nutrient transporters transport the sugars into the enterocytes. This paper reviews the early studies that contributed to the development of a working model of intestinal sugar transport, and details the recent advances made in understanding the process by which sugars are absorbed in the intestine.

关键词： Glucose Fructose SGLT1 GLUT2 GLUT5 Transport Intestine Enterocytes Sugar

Thermostability of montmorillonitic clays

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China Foundry 2014年第3期11卷 201-207页

作者： Petr Jelínek Stanislaw M.Dobosz Jaroslav Beňo Katarzyna Major-Gabrys VSB–Technical University of Ostrava Faculty of Metallurgy and Material Engineering Department of Metallurgy and Foundry Engineering Czech Republic AGH University of Science and Technology Faculty of Foundry Engineering Department of Moulding Materials Mould Technology and Foundry of Non-ferrous Metals Al. Mickiewicza 30 30-059 Krakow Poland

Bentonite is one of the most widespread used clays connected with various applications. In the case of foundry technology, bentonite is primarily used as a binder for mold manufacture. Thermal stability of bentonites is a natural property of clay minerals and it depends on the genesis, source and chemical composition of the clay. This property is also closely connected to bentonite structure. According to DTA analysis if only one peak of dehydroxylation is observed(about 600 oC), the cis- isomerism of bentonite is expected, while two peaks of de-hydroxylation(about 550 and 850 oC) are expected in the trans- one. In this overview, the bentonite structure, the water – bentonite interaction and the swelling behavior of bentonite in connection with the general technological properties of bentonite molding mixture are summarized. Further, various types of methods for determination of bentonite thermostability are discussed, including instrumental analytical methods as well as methods that employ evaluation of various technological properties of bentonite binders and/or bentonite molding mixtures.

关键词： bentonite thermostability binder clay

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A Quasi-One-Dimensional CFD Model for Multistage Turbomachines

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Journal of Thermal Science 2008年第1期17卷 7-20页

作者： Olivier Léonard Olivier adam University of Liège-Turbomachinery Group LiegeBelgium Professor University of Liège-Turbomachinery Group LiegeBelgium

The objective of this paper is to present a fast and reliable CFD model that is able to simulate stationary and transient operations of multistage compressors and turbines. This analysis tool is based on an adapted version of the Euler equations solved by a time-marching, finite-volume method. The Euler equations have been extended by including source terms expressing the blade-flow interactions. These source terms are determined using the ve- locity triangles and a row-by-row representation of the blading at mid-span. The losses and deviations undergone by the fluid across each blade row are supplied by correlations. The resulting flow solver is a performance pre- diction tool based only on the machine geometry, offering the possibility of exploring the entire characteristic map of a multistage compressor or turbine. Its efficiency in terms of CPU time makes it possible to couple it to an optimization algorithm or to a gas turbine performance tool. Different test-cases are presented for which the calculated characteristic maps are compared to experimental ones.

关键词： multistage compressors turbines quasi-one-dimensional meanline analysis

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Ontogeny,growth and development of the small intestine:Understanding pediatric gastroenterology

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World Journal of Gastroenterology 2010年第7期16卷 787-799页

作者： Laurie A Drozdowski Tom Clandinin Alan br Thomson Medical Affairs Mead Johnson NutritionalsOttawaOntarioK1S 5N4Canada Department of Agricultural Food and Nutritional ScienceUniversity of AlbertaAlbertaT6G 2B7Canada Division of General Internal Medicine Department of MedicineUniversity of AlbertaAlbertaT6G 2B7Canada

Throughout our lifetime,the intestine *** alterations in its form and function may be genetically determined,and some are the result of adaptation to diet,temperature,or *** critical period programming of the intestine can be modified,such as from subtle differences in the types and ratios of n3:m6 fatty acids in the diet of the pregnant mother,or in the diet of the *** early forced adaptation may persist in later life,such as the unwanted increased intestinal absorption of sugars,fatty acids and ***,the ontogeny,early growth and development of the intestine is important for the adult gastroenterologist to appreciate,because of the potential for these early life events to affect the responsiveness of the intestine to physiological or pathological challenges in later life.

关键词： Intestinal development Ontogeny Pediatrics

Of mice and men： what rodent models don＇t tell us

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Cellular & Molecular Immunology 2013年第4期10卷 284-285页

作者： adam C Drake Koch Institute for Integrative Cancer Research atMIT Cambridge MA USA

Work recently published in PNAS by The Inflammation and Host Response to Injury, Large Scale Collaborative Research Program1 compared the transcriptional responses in peripheral blood to inflammatory injuries （burns,... 详细信息

关键词： Inflammation Injury human