Results 41 to 50 of about 11,273,867 (290)

Production of ferric ammonium sulfate (FAS) dodecahydrate from pyrite (FeS2)

Environmental Challenges
Pyrite is a waste material typically formed after the extraction of valuable metals from numerous mineral processing circuits, such as copper, gold, and lead.
Wilson Kobal, Rachel A. Pepper, Jose A. Alarco, Wayde Martens, Sara J. Couperthwaite   +4 more
doaj   +1 more source

Multiplicative point process as a model of trading activity

, 2004
Signals consisting of a sequence of pulses show that inherent origin of the 1/f noise is a Brownian fluctuation of the average interevent time between subsequent pulses of the pulse sequence.
B. Kaulakys, Blank, Bonanno, Bouchaud, Cizeau, Gabaix, Gardiner, Gontis, Gontis, Gopikrishnan, Gopikrishnan, Gopikrishnan, Kaulakys, Kaulakys, Kaulakys, Kaulakys, Levy, Levy, Malamud, Mandelbrot, Mandelbrot, Mantegna, Mantegna, Mantegna, Richmond, Schmitt, Schmitt, Sornette, V. Gontis, Vandewalle   +29 more
core   +1 more source

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski, Michael C. Frühwald, Gudrun Fleischhack, Stephan Tippelt, Pablo Hernáiz‐Driever, Olaf Witt, Astrid Gnekow, Christof Kramm, Matthias Eyrich, Johannes E. A. Wolf, Hermann Müller, Carsten Friedrich, Uwe R. Kordes, Denise Obrecht‐Sturm, Petra Ketteler, Barbara von Zezschwitz, Pascal Johann, Dominik Sturm, Karoline Nemes, Stefan Schönberger, Till Milde, Brigitte Bison, Monika Warmuth‐Metz, Torsten Pietsch, Ulrich Schüller, Arend Koch, David Capper, Martin Hasselblatt, Christian Thomas, Christian Hagel, Stefan M. Pfister, Felix Sahm, David T. W. Jones, Martin U. Schuhmann, Jürgen Krauss, Pedram Emami, Ahmed El Damaty, Rolf D. Kortmann, Rudolf Schwarz, Jürgen Debus, Mechthild Krause, Fabian Pohl, Holger Ottensmeier, Lisa Bußenius, Katja Baust, Andreas Faldum, Cecile Ronckers, Desiree Grabow, Martin Benesch, Thomas Perwein, Karin Dieckmann, Irene Slavc, Johannes Gojo, Nicolas U. Gerber, André O. von Bueren, Katrin Scheinemann, Gabriele Calaminus, Beate Timmermann, Ulrich‐Wilhelm Thomale, Martin Mynarek   +59 more
wiley   +1 more source

Génération de semis de points fractals : une méthode du comptage de boites inversée

Cybergeo, 2015
Fractal dimension is useful to characterize the structure of spatial objects such as urban structures or river networks. However, fractal analysis is underutilized for point processes.
Cyril Fleurant
doaj   +1 more source

Citizen Science Data Collection for Integrated Wildlife Population Analyses

Frontiers in Ecology and Evolution, 2021
Citizen science, or community science, has emerged as a cost-efficient method to collect data for wildlife monitoring. To inform research and conservation, citizen science sampling designs should collect data that match the robust statistical analyses ...
Catherine C. Sun, Jeremy E. Hurst, Angela K. Fuller   +2 more
doaj   +1 more source

The radial spanning tree of a Poisson point process

, 2007
We analyze a class of spatial random spanning trees built on a realization of a homogeneous Poisson point process of the plane. This tree has a simple radial structure with the origin as its root.
Baccelli, Francois, Bordenave, Charles
core   +1 more source

SEISMIC: A Self-Exciting Point Process Model for Predicting Tweet Popularity [PDF]

, 2015
Social networking websites allow users to create and share content. Big information cascades of post resharing can form as users of these sites reshare others' posts with their friends and followers.
Erdogdu, Murat A., He, Hera Y., Leskovec, Jure, Rajaraman, Anand, Zhao, Qingyuan   +4 more
core   +1 more source

Stressful Events Reported by Childhood Cancer Survivors and Community Controls From the St. Jude Lifetime (SJLIFE) Cohort: A Mixed Method Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Characterizing stressful events reported by childhood cancer survivors experienced throughout the lifespan may help improve trauma‐informed care relevant to the survivor experience. Methods Participants included 2552 survivors (54% female; 34 years of age) and 469 community controls (62% female; 33 years of age) from the St.
Megan E. Ware, Colter K. Clayton, Fang Wang, Sedigheh Mirzaei, Kyla Shelton, Tara M. Brinkman, Victoria Willard, Katianne M. Howard Sharp, Kevin Krull, Lindsay F. Schwartz, Melissa M. Hudson, Gregory T. Armstrong, Kirsten K. Ness, Rachel T. Webster   +13 more
wiley   +1 more source

Non-contact tracking of shoulder bones using ultrasound and stereophotogrammetry

Frontiers in Bioengineering and Biotechnology
PurposeWe explored the integration of 3D ultrasound (US) imaging with motion capture technology for non-invasively tracking bones of the shoulder district during normal activity.
Ahmed Sewify, Ahmed Sewify, Maxence Lavaill, Maxence Lavaill, Dermot O’Rourke, Dermot O’Rourke, Maria Antico, Maria Antico, Peter Pivonka, Peter Pivonka, Davide Fontanarosa, Davide Fontanarosa, Saulo Martelli, Saulo Martelli   +13 more
doaj   +1 more source

Rescaling Marked Point Processes [PDF]

Australian <html_ent glyph="@amp;" ascii="&amp;"/> New Zealand Journal of Statistics, 2004
From the authors' abstract: \textit{P.-A. Meyer} [in: Sém. Bourbaki 1968/69, No. 361, 245--259 (1971; Zbl 0273.60053)] showed how to use the compensator to rescale a multivariate point process, forming independent Poisson processes with intensity 1. Meyer's result has been generalized to multidimensional point processes.
David Vere-Jones, Frederic Paik Schoenberg   +1 more
openaire   +2 more sources