Sample records for valk raili allme
-
Zahlen und Rechenvorgänge auf unterschiedlichen Abstraktionsniveaus
NASA Astrophysics Data System (ADS)
Rödler, Klaus
"Das Verständnis geht langsam vor sich!" Diesen wichtigen Satz hörte ich bei einem Vortrag von Martin Lowsky. Auf die hier behandelte Fragestellung übertragen heißt das: Was eine Zahl ist und wie ich sie im Rechenvorgang einsetzen und interpretieren kann, das erschließt sich erst allmählich. Die Zahl des Rechenanfängers ist nicht dieselbe wie die des kompetenten Rechners und es ist nicht die Zahl des Lehrers oder der Lehrerin. Die Zahlen sind nur auf der Oberfläche der Worte und Zeichen gleich. Im Innern, im Verständnis, sind sie völlig verschieden! Ich glaube, dass die Missachtung dieser Divergenz dazu führt, dass manche Kinder in für den Lehrer und Lehrerin nicht nachvollziehbaren Routinen stecken bleiben, einfachste Informationen nicht wirklich integrieren. Die auf beiden Seiten wachsende Verunsicherung durch die nicht erkannte und daher nicht kommunizierbare Diskrepanz im inneren Zahlkonzept stört den allmählichen Aufbau strukturierter Zahlvorstellungen.
-
Genetics Home Reference: cytogenetically normal acute myeloid leukemia
... on PubMed Marcucci G, Haferlach T, Döhner H. Molecular genetics of adult acute myeloid leukemia: prognostic and therapeutic ... on PubMed Sanders MA, Valk PJ. The evolving molecular genetic landscape in acute myeloid leukaemia. Curr Opin Hematol. ...
-
Posttranscriptional Regulation of the Neurofibromatosis 2 Gene
2005-08-01
videomicroscopy . Neoplasia 1:31-41 Long-Sheng Chang et al. 32 232. Valk, P.J., Verhaak, R.G., Beijen, M.A., Erpelinck, C.A., Barjesteh van Waalwijk van Doorn...assessed by intravital multi-fluorescence videomicroscopy . Neoplasia. 1999; 1: 31-41. 137. Vajkoczy P, Menger MD, Goldbrunner R, et al. Targeting
-
The Expert Infantryman Squad and Platoon Evaluation (EISPE) I Concept: Evaluations and Observations
1977-12-01
specific perforanc•a test imetditelv following the roa’ &.:-rch requires the Infantryman to show he r n still function AccA .-’a\\;ifter the stress of...weighed against thn cost of devoting an hour or two of valuable testing time to this activity. Similarly, it is debatable whether tre coordinated...the objective effective? (9) Was withdrawal free the objective rapid and organized? (10) Was everyone accounted for at the oojective raily point? (11
-
ERIC Educational Resources Information Center
He, Ming Fang; Sapp, Jeff; Botelho, Maria Jose; Nunez, Isabel; Scott-Simmons, Wynnetta; Johnson, Lincoln
2013-01-01
The theme of this column is African American Women's Memories of Racial Oppression and Segregation in the U.S. South and Its Relevance to Multicultural Education. The focus of the review is on Anne Valk and Leslie Brown's "Living with Jim Crow: African American Women and Memories of the Segregated South" (2010). In "Living with Jim…
-
Needs-Based Programs: Eligibility and Benefit Factors.
1986-07-01
of m- Allm Veto= Nwftal Famt- Dim- IbWAd- amw- -m SSM - f~l dd __ s Bt p !Iidtt a m ablt Wind a aftim Ya LAWr Ibsh laD adi Grata 1 I I 1 I Pasta " I I...administration* refers to the level of government or the organization level responsible for day-to-day program administration. When "state" is shown...preschool program health, educational, nutri- are primarily for young offers educational, tional, social and other children (ages 3 to that age dental
-
Physical Demands, Mental Performance and Food Components in Military Settings
2005-08-01
2004). Recently, this task showed to be sensitive for the performance enhancing effects of modafinil and caffeine (Simons et al. 2004, in press). 4.2.2...Simons, Struyvenberg et al., 1997; Valk, Van Roon, Simons, Rikken, 2004). Recently, the MAT also showed performance enhancing effects of modafinil and... Choline , a part of the B-vitamins complex, can pass the blood-brain barrier. It has however not showed any effect on cognitive functioning yet
-
Assessment of Thermal Dehydration Using the Human Eye: What is the Potential?
2012-01-01
Kenefick a, Neil P. Walsh b, Matthew B. Fortes b, Marieh Esmaeelpour c,d, Samuel N. Cheuvront a,n a US Army Research Institute of Environmental Medicine...anhydrase inhibitors, which are commonly prescribed to glaucoma patients (van der Valk et al., 2005; World Heath Organization; 2009). Both types of...Deposition and thinning of the human tear film. J. Colloid Interface Sci. 184, 44–51. World Heath Organization, 2009. WHO model formulary 2008. WHO
-
1990-12-01
030(M aau fr e~ re u’. ~oil(eIOE, form a::o n lit Send c f"ent lt ar nq this Ourde" "tii tor ay otther a .e n Of p, amid". to W4Vsntinlln...etadnuaeters ief’ice. 0 i 0reor Iformat.a;tio n ax; d 1 21 ;eQo Q offait of IA4naqe-m.t and Sudget. P01osoer t m edltoru Prole (07044 ,l81.’Nairil m O C NMI. I...I Application of Neural Networks to Robotics I Ziaudin Ahmnad John Selizuky Allm Gun Dmeel University, Depwunent of Electrical miCapue Engineeing
-
Transgenic Rat Models for Breast Cancer Research
1998-10-01
animals with mammary adenocarcinoma (1 out of 26 p53 null mice) whereas there was a high incidence of malignant lymphomas (20 out of 26). These studies...heir capacity to develop in utero . To this end, Dr. Warren has cultured various stages of rat embryos and 10 *~cý t. ?V& ks, 9A LA 6"r Eiac,’X4vrý...hyperplasia and adenocarcinomas in male and female mice. Cell 55: 619-625. 13. Andres, A.C., M.A. VanderValk, C.-A. Schoenenberger, F. Fluckinger, M
-
Positron Emission Tomography: Principles, Technology, and Recent Developments
NASA Astrophysics Data System (ADS)
Ziegler, Sibylle I.
2005-04-01
Positron emission tomography (PET) is a nuclear medical imaging technique for quantitative measurement of physiologic parameters in vivo (an overview of principles and applications can be found in [P.E. Valk, et al., eds. Positron Emission Tomography. Basic Science and Clinical Practice. 2003, Springer: Heidelberg]), based on the detection of small amounts of posi-tron-emitter-labelled biologic molecules. Various radiotracers are available for neuro-logical, cardiological, and oncological applications in the clinic and in research proto-cols. This overview describes the basic principles, technology, and recent develop-ments in PET, followed by a section on the development of a tomograph with ava-lanche photodiodes dedicated for small animal imaging as an example of efforts in the domain of high resolution tomographs.
-
Transformation of Chlorpyrifos and Chlorpyrifos-Methyl in Prairie Pothole Porewaters
NASA Astrophysics Data System (ADS)
Anderson, R. M.; Chin, Y. P.
2014-12-01
The prairie pothole region (PPR) extends over approximately 700,000 km2 in the Great Plains region in United States and Canada and is a critical breeding ground for migratory waterfowl, as well as an important ecosystem for diverse invertebrates and aquatic plants (van der Valk, 2003). Consisting of up to 12 million permanent and temporary depressional wetlands, the PPR is negatively impacted by non-point source pesticide pollution due to extensive agricultural development in the region. Recent studies have shown that high (mM) levels of sulfate in the pothole lakes are capable of abiotically reducing dinitroaniline and chloroacetanilide pesticides (Zeng, 2011; Zeng, 2012). In this study the transformation of the organophosphorus pesticide chlorpyrifos (CP) and its analog chlorpyrifos-methyl (CPM) was studied using pore waters sampled from two pothole lakes. CP and CPM have been found to react in the laboratory with sulfur species via a SN2 mechanism, with degradation by sulfur compounds occurring faster than hydrolysis at high pH (Wu, 2006). To date the reaction of CP and CPM in natural environments with sulfur species has not been studied. Chlorpyrifos-methyl underwent rapid degradation in the presence of reduced sulfur species in pore water, while chlorpyrifos degradation occurred at significantly slower rates. Both CP and CPM degradation occurred at comparable rates to what has been previously observed in the laboratory (Wu, 2006). References van der Valk, Arnold G., and Roger L. Pederson. "The SWANCC decision and its implications for prairie potholes." Wetlands 23.3 (2003): 590-596. Wu, Tong, Qiu Gan, and Urs Jans. "Nucleophilic Substitution of Phosphorothionate Ester Pesticides with Bisulfide (HS-) and Polysulfides (Sn2-)." Environmental science & technology 40.17 (2006): 5428-5434. Zeng, Teng, et al. "Pesticide processing potential in prairie pothole porewaters."Environmental science & technology 45.16 (2011): 6814-6822. Zeng, Teng, Yu-Ping Chin, and William
-
Effect of the different cover crops on the soil moisture in a Hungarian vineyard
NASA Astrophysics Data System (ADS)
Donkó, Ádám; Miglécz, Tamás; Valkó, Orsolya; Deák, Balázs; Kelemen, András; Török, Péter; Tóthmérész, Béla; Drexler, Dóra
2017-04-01
in 2015, at two sampling dates (April and June). During sampling the soil moisture content was measured in seven different depths per sampling point in five replicates: 10 cm, 20 cm, 30 cm, 40 cm, 50 cm, 60 cm, and 70 cm. We found significantly lower indices in case of the Lolium perenne treatment compared to the Grass-forb, and Control treatments in 40-70 cm depth. The results are in accordance with the results of previous research, that state that the use of Lolium perenne in the inter-rows can be sustainable in case of at least 7-800 mm precipitation/year, or under irrigated conditions. Among the three species-rich mixtures we have not found significant differences, but the results show that the Grass-forb mixture (with Plantago lanceolata domination) utilized the least moisture from the soil. Literature Donkó Á, Miglécz T, Valkó O, Tóthmérész B, Deák B, Kelemen A, Török P, Zanathy G, Zsigrai Gy, Drexler D (2015): Intercropping experiments in Hungarian vineyards. HUNGARIAN AGRICULTURE RESEARCH. 24 (4): pp. 31-34. (2015) Miglécz T, Valkó O, Török P, Deák B, Kelemen A, Donkó Á, Drexler D, Tóthmérész B: Establishment of three cover crop mixtures in vineyards. SCIENTIA HORTICULTURAE 197: pp. 117-123. (2015)
-
Cognitive Performance Effects of Bilastine 20 mg During 6 Hours at 8000 ft Cabin Altitude.
Valk, Pierre J L; Simons, Ries; Jetten, Andrea M; Valiente, Román; Labeaga, Luis
2016-07-01
Bilastine is a new oral, second generation antihistamine used in the symptomatic treatment of allergic rhinoconjunctivitis and urticaria. It is considered a nonsedating antihistamine and might be recommended for use in pilots, pending research on the effects on flying-related performance under hypobaric conditions that prevail in an airliner. We assessed the effects of a single dose of bilastine 20 mg on alertness and complex task performance of healthy volunteers in a hypobaric chamber at 75.2 kPa (8000 ft/2438 m cabin altitude). In a randomized, double-blind, crossover study, 24 volunteers received a single dose of bilastine 20 mg, hydroxyzine 50 mg (active control), and placebo. Using the Vigilance and Tracking Task, Multi-Attribute Task Battery, and Stanford Sleepiness Scale, assessments were made before and up to 6 h after intake of the study medication. Bilastine 20 mg had no impairing effects on sleepiness levels, vigilance, or complex task performance for up to 6 h post-dose. Hydroxyzine 50 mg (active control) was associated with significant sleepiness and impaired performance across this time period, confirming the sensitivity of the tests. Bilastine 20 mg did not cause sleepiness or impaired performance on tasks related to flying. It is anticipated that a single dose of bilastine 20 mg will not affect flying performance. Bilastine may provide a safe therapeutic alternative for pilots suffering from allergic rhinitis or urticaria. Our findings might also have implications for the treatment of allergic disorders of personnel involved in other safety-sensitive jobs. Valk PJL, Simons R, Jetten AM, Valiente R, Labeaga L. Cognitive performance effects of bilastine 20 mg during 6 hours at 8000 ft cabin altitude. Aerosp Med Hum Perform. 2016; 87(7):622-627.
-
Cattle grazing and its long-term effects on sedge meadows
Middleton, Beth
2004-01-01
Most people think that wetlands are temporary, that they fill in by natural processes, and eventually become dry land. Some of these outdated ideas have come from the way that this subject has been covered in introductory textbooks in schools (Gibson, 1996). From these texts, we learned incorrectly that over time a lake fills with sediment or organic matter to become a wetland, which dries out to support shrubs and trees, and eventually it is no longer a wetland (Middleton, 1999; Middleton and others, 2004). These old ideas of how vegetation changes (succession) are no longer accepted. Wetland succession should be thought of as a cycle, with natural disturbance driving the changes, depending on the needs of the species. Succession is not something that changes a wetland into something that is not a wetland (Egler, 1978; van der Valk, 1981; Middleton and others, 1991; Klinger, 1996; Middleton, 1999).As an example of how disturbance changes wetlands, I have studied sedge meadows that have become invaded by shrubs after cattle (Bos sp.) have grazed them, in the Lodi Marsh State Natural Area, Wisconsin. Cattle disturbances allowed shrubs to invade sedge meadows, but the cattle also grazed on the shrubs, which kept them small. After the cows were removed, the plant species changed in the sedge meadow from the original sedges (fig. 1), to sedges mixed with growing small shrubs, and eventually to tall shrubs with very small amounts of sedge, called “shrub carr” (Middleton, 2002a). Even though there has been a succession of plant types, the meadows, which began as wetlands, have remained wetlands. The settlers originally found the sedge meadows to be open “sedge” lands and not shrubby. The settlers cut the sedges by hand to feed the cattle. Whitetailed deer (Odocoileus virginianus), though probably not bison (Bison bison), grazed these sedge meadows (Middleton 2002a).Subsequent studies have explored methods to control invasive shrubs to restore the biodiversity of
-
Livermore's 2004 R&D 100 Awards: Magnetically Levitated Train Takes Flight
DOE Office of Scientific and Technical Information (OSTI.GOV)
Hazi, A
2005-09-20
the 1960s, transportation industry planners have sought an energy-efficient design for a train that can glide through air at speeds up to 500 kilometers per hour. This type of train, called a magnetically levitated (maglev) train, is thought to be a viable solution to meet the nation's growing need for intercity and urban transportation networks. However, despite some promising developments, unresolved concerns with the operation and safety of maglev trains has prevented the transition from demonstration model to commercial development. Inductrack, a maglev system originally conceived by Livermore physicist Richard Post, is designed to address these issues. Post's work onmore » Inductrack began with funding from Livermore's Laboratory Directed Research and Development Program, and in 2003, the technology was licensed to General Atomics (GA) in San Diego for train and transit system applications. This year, members of the Livermore-GA team received an R&D 100 Award for Inductrack's development. Inductrack uses permanent magnets to produce the magnetic fields that levitate the train and provides economic and operational advantages over other maglev systems. It can be adapted to both high-speed and urban-speed environments. In the event of a power failure, the train slows gradually until it comes to rest on its auxiliary wheels. The maintenance requirements for Inductrack are also lower than they are for other systems, plus it has a short turning radius and is designed for quiet operation. Previous designs for maglev systems did not offer the energy efficiency or safety protections that are in the Inductrack design. Electromagnetic systems (EMS) use powered electromagnets to levitate the train. However, these systems are based on magnetic attraction rather than repulsion and thus are inherently unstable. In EMS trains, the levitation gap--the separation between the magnet pole faces and the iron rail--is only about 10 millimeters and, during operation, must be
-
Hansen, Lars Jørgen; Drivsholm, Thomas B
2002-01-28
This review should be cited as: Renders CM, Valk GD, Griffin S. Wagner EH, Eijk JThM van, Assendelft WJJ. Interventions to improve the management of diabetes mellitus in primary care, outpatient and community settings (Cochrane Review). In: The Cochrane Library, Issue 2, 2001. Oxford: Update Software. A substantive amendment to this systematic review was last made on 29 June 2000. Cochrane reviews are regularly checked and updated if necessary. Diabetes is a common chronic disease that is increasingly managed in primary care. Different systems have been proposed to manage diabetes care. To assess the effects of different interventions, targeted at health professionals or the structure in which they deliver care, on the management of patients with diabetes in primary care, outpatient and community settings. We searched the Cochrane Effective Practice and Organisation of Care Group specialised register, the Cochrane Controlled Trials Register (Issue 4 1999), MEDLINE (1966-1999), EMBASE (1980-1999), Cinahl (1982-1999), and reference lists of articles. Randomised trials (RCTs), controlled clinical trials (CCTs), controlled before and after studies (CBAs) and interrupted time series (ITS) analyses of professional, financial and organisational strategies aimed at improving care for people with Type 1 or Type 2 diabetes. The participants were health care professionals, including physicians, nurses and pharmacists. The outcomes included objectively measured health professional performance or patient outcomes, and self-report measures with known validity and reliability. Two reviewers independently extracted data and assessed study quality. Forty-one studies were included involving more than 200 practices and 48,000 patients. Twenty-seven studies were RCTs, 12 were CBAs, and two were ITS. The studies were heterogeneous in terms of interventions, participants, settings and outcomes. The methodological quality of the studies was often poor. In all studies the intervention
-
Exupéry - a mobile fast response system for managing a volcanic crisis
NASA Astrophysics Data System (ADS)
Hort, M. K.
2009-12-01
analyze the incoming data (e.g. earthquake classification, rapid moment tensor inversion, deformation modeling, an automatic alert level system) which are currently under development. Exupery Working Group: Barsch R (2); Bernsdorf S (3); Beyreuther M (2); Cong X (4); Dahm T (1); Eineder M (4); Erbertseder T (4); Gerstenecker C (5); Hammer C (6); Hansteen T (7); Krieger L (1); Läufer G (5); Maerker C (4); Montalvo Garcia A (1); Ohrnberger M (6); Rix M (4); Rödelsperger S (5); Seidenberger K (4); Shirzaei M (8); Stammler K (9); Stittgen H (9); Valks P (4); Walter T (8); Wallenstein N (10); Wassermann J (2); Zakšek K (1) (1)Institute of Geophysics, Hamburg, Germany; (2) Department of Earth and Environmental Sciences, Geophysical Observatory, Munich, Germany; (3)Centauron - geosoftware & consulting, Weimar, Germany; (4)DLR Oberpfaffenhofen, Germany; (5)Institute of Physical Geodesy, Darmstadt, Germany; (6)Institute of Geosciences, Potsdam, Germany; (7) IFM-GEOMAR, Leibniz Institute of Marine Sciences, Germany; (8)Department physics of the earth, GFZ, Potsdam, Germany; (9)BGR, Geocentre Hannover, Germany; (10)CVARG, Universidade Dos Acores; Portugal
-
Olbers, Torsten; Beamish, Andrew J; Gronowitz, Eva; Flodmark, Carl-Erik; Dahlgren, Jovanna; Bruze, Gustaf; Ekbom, Kerstin; Friberg, Peter; Göthberg, Gunnar; Järvholm, Kajsa; Karlsson, Jan; Mårild, Staffan; Neovius, Martin; Peltonen, Markku; Marcus, Claude
2017-03-01
cardiovascular risk factors in adolescent surgical patients showed improvement over 5 years and compared favourably with those in adolescent controls. 20 (25%) of 81 adolescent surgical patients underwent additional abdominal surgery for complications of surgery or rapid weight loss and 58 (72%) showed some type of nutritional deficiency; health-care consumption (hospital attendances and admissions) was higher in adolescent surgical patients compared with adolescent controls. 20 (25%) of 81 adolescent controls underwent bariatric surgery during the 5-year follow-up. Adolescents with severe obesity undergoing Roux-en-Y gastric bypass had substantial weight loss over 5 years, alongside improvements in comorbidities and risk factors. However, gastric bypass was associated with additional surgical interventions and nutritional deficiencies. Conventional non-surgical treatment was associated with weight gain and a quarter of patients had bariatric surgery within 5 years. Swedish Research Council; Swedish Governmental Agency for Innovation Systems; National Board of Health and Welfare; Swedish Heart and Lung Foundation; Swedish Childhood Diabetes Foundation; Swedish Order of Freemasons Children's Foundation; Stockholm County Council; Västra Götaland Region; Mrs Mary von Sydow Foundation; Stiftelsen Göteborgs Barnhus; Stiftelsen Allmänna Barnhuset; and the US National Institute of Diabetes, Digestive, and Kidney Diseases (National Institutes of Health). Copyright © 2017 Elsevier Ltd. All rights reserved.