Results 1 to 10 of about 7,599,404 (323)
The PH/PH/1 Multi-threshold Queue [PDF]
, 2014 We consider a PH/PH/1 queue in which a threshold policy determines the stage of the system. The arrival and service processes follow a Phase-Type (PH) distribution depending on the stage of the system. Each stage has both a lower and an upper threshold at which the stage of the system changes, and a new stage is chosen according to a prescribed ...
Baër, Niek +2 more
openaire +3 more sources
Pion and Strangeness Puzzles [PDF]
, 1996 The dependence of pion and strangeness production on the number of participant nucleons and collision energy is discussed for central A+A collisions. A possible interpretation of the experimental results assuming transition to QGP is sketched within a ...
Gazdzicki, Marek
core +2 more sources
, 2005 The purpose of this resource is to measure the pH of water. Students use either a pH meter or pH paper to measure the pH. If using the pH meter, the meter needs to be calibrated with buffer solutions that have pH values of 4, 7, and 10.
The GLOBE Program, UCAR (University Corporation for Atmospheric Research)
core
X-ray observations and mass determinations in the cluster of galaxies Cl0024+17 [PDF]
, 2000 We present a detailed analysis of the mass distribution in the rich and distant cluster of galaxies Cl0024+17. X-ray data come from both a deep ROSAT/HRI image of the field (Bohringer et al. 1999) and ASCA spectral data.
Bohringer, H. +5 more
core +3 more sources
Heavy metal bioavailability and bioaccessibility in soil [PDF]
, 2009 This chapter considers the use of a variety of approaches to assess either the bioavailability or the bioaccessibility of metals in soil. The bioavailability of metals from soils is considered with respect to a series of single-extraction methods ...
A.G. Oomen +8 more
core +1 more source
Schweizerische Zeitschrift für BildungswissenschaftenIm vorliegenden Beitrag werden Erkenntnisse zur kulturellen Passung zwischen sozial privilegierten Familien und der Schule präsentiert. Sie resultieren aus einer qualitativ-ethnografischen Längsschnittstudie, die im Kanton Bern durchgeführt wurde.
Doris Edelmann +2 more
doaj +1 more source
The Study and Comparison of Family Performance and Psychological Profile of Students in Martyred Families with Remarried and Non–remarried Mothers. [PDF]
فصلنامه نوآوریهای آموزشی, 2005 Three–hundred and seventy–three male and female students from martyred families attending high schools for martyred families were selected by using cluster sampling in four provinces of Tehran, Kermanshah, Ardebil and Chahar Mahal and Bakhtiari.
Hadi Keramati +2 more
doaj
Fachspezifische Qualitätsprofile von Rechtschreibunterricht in Deutschland und der Schweiz
Schweizerische Zeitschrift für Bildungswissenschaften, 2023 Im Rahmen der ländervergleichenden Studie „Professionelle Kompetenzen und Unterrichtshandeln von Primarlehrpersonen im Lernbereich Rechtschreibung“ wurden 43 Rechtschreiblektionen zur Doppelkonsonantenschreibung in den Klassen 3 bis 6 videografiert und ...
Maja Wiprächtiger +4 more
doaj +1 more source
, 2003 The purpose of this resource is to teach students about the acidity levels of liquids and other substances around their school so they understand what pH levels tell us about the environment.
The GLOBE Program, UCAR (University Corporation for Atmospheric Research)
core
Ästhetische Überlegungen zur Medienpädagogik
MedienimpulseDas ästhetische Empfinden bei Begegnungen mit Artefakten ist die Essenz jeder näheren Auseinandersetzung mit Kunst, Wissenschaft und Alltagskultur und somit ein wichtiger Parameter für Lernprozesse.
Elke Hackl, Alexandra Scharl, Jelena Ojo
doaj +1 more source