Startingpage Search Engine Universitätsbibliothek | Freie Universität Berlin : Digitale Bibliothek - Service All The Web: News [Advanced Search] Die bekannten Stärken der Suchmaschine "All the Web" kommen auch bei der Suche nach "News" (Meldungen, News, Artikel, Postings usw.) zum Tragen: großer Suchindex (ca. 3.000(!) durchsuchte Nachrichtenquellen) kombiniert mit sehr differenzierten Suchmöglichkeiten (Sprachenfilter, Domainfilter, Alter der Quellen. Google News Die beliebte Internet-Suchmaschine "Google" bietet ebenfalls eine eigene Nachrichten-Seite an. Google News Archive Mit dem "News Archive" erweitert Google seine breite Produktpalette an Spezialsuchdiensten um ein Angebot zur Recherche in digitalen Nachrichten- und Pressearchiven. Google News Deutschland Der deutsche Ableger der "Google News" funktioniert nach demselben Prinzip wie sein amerikanisches Vorbild. HeadlineSpot IberoDigital
Using SPSS for Nominal Data (Binomial and Chi-Squared Tests) Using SPSS for Nominal Data:Binomial and Chi-Squared Tests This tutorial will show you how to use SPSS version 12.0 to perform binomial tests, Chi-squared test with one variable, and Chi-squared test of independence of categorical variables on nominally scaled data. This tutorial assumes that you have: Downloaded the standard class data set (click on the link and save the data file) Started SPSS (click on Start | All Programs | SPSS for Windows | SPSS 12.0 for Windows) Loaded the standard data set Binomial Test The binomial test is useful for determining if the proportion of people in one of two categories is different from a specified amount. SPSS assumes that the variable that specifies the category is numeric. As always, we will perform the basic steps in hypothesis testing: Write the hypotheses: H0: P = .5 H1: P ≠ .5 Where P is the proportion of people who selected cats.Determine if the hypotheses are one- or two-tailed. The output tells us that there are two groups: DOG and CAT.
Clustering Engine Carrot2 Search Results Clustering Engine Carrot2 organizes your search results into topics. With an instant overview of what's available, you will quickly find what you're looking for. Choose where to search: Type your query: More options More advanced options Hide advanced options Example queries: data mining | london | clustering About Carrot2: Carrot2 is an Open Source Search Results Clustering Engine.
Ixquick Search Engine SPSS, Tutorial, deutsch, Literatur zu SPSS, Tutorials, Dialogfelder, Dialogfeld, Flash Tutorial, Statistik, FU, Berlin, Informationen zu SPSS-Lizenzen SPSS-Tutorials (deutsch) Übersicht zu den vorhandenen Flash-Animationen Datenzugang: Aufbau einer Datendatei Datenimport über die ODBC-Schnittstelle Datenaufbereitung: Berechnen von Informationen Klassifizieren von Variablen über Umkodieren Umkodieren von Variablen Selektieren I - Vergleichsoperatoren Selektieren II - logische Operatoren Selektieren III - komplexe Bedingungen Datenanalyse: Deskriptive Statistik Testen I - Testen auf Unterschiede (t-Test unabh. Zum effektiven Umgang mit dem Programm: Editieren von Tabellen im Ausgabefenster Verwendung von Syntaxanweisungen Verwendung von Syntaxanweisungen - erweiterte Version SPSS und R - Installation und Nutzung SPSS und R mit Grafik - Demonstration der Anwendung Verwendung von Makros Verwendung von Skripten Datenzugang Tutorial zum Aufbau einer Datendatei (Flash-Animation) Tutorial zum Datenimport über die ODBC-Schnittstelle (Flash-Animation) Datenaufbereitung Tutorial zum Berechnen von Informationen (Flash-Animation) Datenanalyse Testen
Icerocket blog search 100+ Alternative Search Engines You Should Know If someone asks you, off the top of your head, what search engines you use or know off, chances are you’ll be naming the regulars: Google, Bing, Yahoo. The Internet however is a really big place and there are plenty more search engines out there that can cater to very specific requirements. General Search Engines We’re skipping the search engines that everyone know about so you won’t be seeing Google, Yahoo or Bing in this list. Aol – Aol offers search results combined with content from AOL. MyWebSearch – MyWebSearch is search engine that shows results from Google. Regional Search Engines Search Nigeria – Search Nigeria is a web based portal and search engine. Kid-Safe Search Engines These search engines provide children with a search service that keeps out age-inappropriate materials unfit for consumption for young ages. Social Media Search Engines Pixnet – An online mobile photo sharing and networking service. Image & Icon Search Engines Knowledge Search Engines Private Search Engines
Elementary Concepts in Statistics In this introduction, we will briefly discuss those elementary statistical concepts that provide the necessary foundations for more specialized expertise in any area of statistical data analysis. The selected topics illustrate the basic assumptions of most statistical methods and/or have been demonstrated in research to be necessary components of our general understanding of the "quantitative nature" of reality (Nisbett, et al., 1987). We will focus mostly on the functional aspects of the concepts discussed and the presentation will be very short. Further information on each of the concepts can be found in statistical textbooks. Recommended introductory textbooks are: Kachigan (1986), and Runyon and Haber (1976); for a more advanced discussion of elementary theory and assumptions of statistics, see the classic books by Hays (1988), and Kendall and Stuart (1979). What are Variables? Variables are things that we measure, control, or manipulate in research. Correlational vs. Dependent vs.
Reference, Facts, News - Free and Family-friendly Resources - Refdesk PCR 1) Add the following to a microfuge tube: 10 ul reaction buffer 1 ul 15 uM forward primer 1 ul 15 uM reverse primer 1 ul template DNA 5 ul 2 mM dNTP 8 ul 25 mM MgCl2 or MgSO4 (volume variable) water (to make up to 100 ul) 2) Place tube in a thermocycler. 3) Start the PCR cycles according the following schemes: a) denaturation - 94 ° C, 30-90 sec. b) annealing - 55 °C (or -5° Tm), 0.5-2 min. c) extension - 72 °C, 1 min. repeat cycles 29 times 4) Add a final extension step of 5 min. to fill in any uncompleted polymerisation. Note: Most of the parameters can be varied to optimise the PCR (more at Tavi's PCR guide ): a) Mg ++ - one of the main variables - change the amount added if the PCR result is poor. b) Template DNA concentration - PCR is very powerful tool for DNA amplification therefore very little DNA is needed. c) Enzymes used - Taq DNA polymerase has a higher error rate (no proof-reading 3' to 5' exonuclease activity) than Tli or Pfu . h) Additives - i) PCR buffer 16.6 mM ammonium sulfate
An Open Letter to Wikipedia About Anatole Broyard and "The Human Stain" I am Philip Roth. I had reason recently to read for the first time the Wikipedia entry discussing my novel “The Human Stain.” The entry contains a serious misstatement that I would like to ask to have removed. This item entered Wikipedia not from the world of truthfulness but from the babble of literary gossip—there is no truth in it at all. Yet when, through an official interlocutor, I recently petitioned Wikipedia to delete this misstatement, along with two others, my interlocutor was told by the “English Wikipedia Administrator”—in a letter dated August 25th and addressed to my interlocutor—that I, Roth, was not a credible source: “I understand your point that the author is the greatest authority on their own work,” writes the Wikipedia Administrator—“but we require secondary sources.” Thus was created the occasion for this open letter. My novel “The Human Stain” was described in the entry as “allegedly inspired by the life of the writer Anatole Broyard.” Sincerely, Philip Roth
Seq Anal Each gene has a specific sequence of nucleotides, commonly called its DNA sequence. Once we have cloned a gene into a plasmid we can determine the sequence of the DNA using the dideoxynucleotide method either manually or by using automated sequencers. To seqeunce DNA, the DNA is first denatured, producing a single stranded template. A specific primer is then added which binds to the template. One then subjects the gel to autoradiography (manual technique) or looks for fluorescent dyes (automated technique) to determine the location of each band. One of the cornerstones to the rapid advances in molecular biology and genome research is the ability to rapidly deal with very large DNA sequences using sophisticated programs and powerful computers. Click on either sequencing gel to the right to learn more about the steps involved in DNA sequencing.