Peter Paul Klein - Articles - Scientific Research Publishing

On the Ellipsoid and Plane Intersection Equation (Articles)

Peter Paul Klein

Applied Mathematics Vol.3 No.11，November 20, 2012

DOI: 10.4236/am.2012.311226 13,818 Downloads 22,249 Views Citations
On the Intersection Equation of a Hyperboloid and a Plane (Articles)

Peter Paul Klein

Applied Mathematics Vol.4 No.12A，December 24, 2013

DOI: 10.4236/am.2013.412A005 6,465 Downloads 8,415 Views Citations
This article belongs to the Special Issue on Numerical Analysis
The Insphere of a Tetrahedron (Articles)

Peter Paul Klein

Applied Mathematics Vol.11 No.7，July 20, 2020

DOI: 10.4236/am.2020.117041 976 Downloads 1,827 Views Citations
Enclosing Ellipses by Folding Disks (Articles)

Peter Paul Klein

Applied Mathematics Vol.13 No.2，February 21, 2022

DOI: 10.4236/am.2022.132012 104 Downloads 518 Views Citations
Ultrasound screening of the kidneys and urinary tract in 11.887 newborn infants: A 10-year experience (Articles)

Susanne E. Gruessner, Katja Klein, Corinna Peter, Eva Bueltmann, Jenny Wagner, Volker Klingmueller

Open Journal of Obstetrics and Gynecology Vol.2 No.4，November 20, 2012

DOI: 10.4236/ojog.2012.24080 5,699 Downloads 8,253 Views Citations
What does the “arrow of time” stand for? (Articles)

Etienne Klein

Natural Science Vol.2 No.3，April 12, 2010

DOI: 10.4236/ns.2010.23033 6,118 Downloads 11,530 Views Citations
Partial Formalization: An Approach for Critical Analysis of Definitions and Methods Used in Bulk Extraction-Based Molecular Microbial Ecology (Articles)

Donald A. Klein

Open Journal of Ecology Vol.5 No.8，August 25, 2015

DOI: 10.4236/oje.2015.58033 4,310 Downloads 5,221 Views Citations
This article belongs to the Special Issue on Advances in Microbial Ecology
Disability and Healthy Ageing as Stereotypizing Paradigms and Forms of Ageism: The Impact of COVID-19 Pandemia (Articles)

Alejandro Klein

Open Journal of Social Sciences Vol.10 No.6，June 21, 2022

DOI: 10.4236/jss.2022.106008 166 Downloads 740 Views Citations
This article belongs to the Special Issue on COVID-19 and Social Development
The New Social and Identitary Models of Old People—Deepening the Concept of Successful Ageing (Articles)

Alejandro Klein

Advances in Aging Research Vol.11 No.4，June 21, 2022

DOI: 10.4236/aar.2022.114007 227 Downloads 1,410 Views Citations
Ageism: Millennial Persistence (Articles)

Alejandro Klein

Advances in Aging Research Vol.13 No.1，January 31, 2024

DOI: 10.4236/aar.2024.131001 74 Downloads 557 Views Citations
Exploring the Nexus between Packaging, Quality, Equity and Loyalty in Drug Industry (Articles)

Peter Kwasi Oppong, Joseph Owusu, Paul Hammond, Edmond Amissah

Open Journal of Business and Management Vol.10 No.5，September 7, 2022

DOI: 10.4236/ojbm.2022.105121 208 Downloads 881 Views Citations
Experimental Investigations of the Effects of Secondary Air Injection on Gaseous Emission Profiles (NO_x, NO, NO₂, CO) and Hydrocarbons (C_xH_x) in Cookstoves Using Charcoal from Eucalyptus glandis (Articles)

Paul Njogu, Purity Muthoni, Peter Oketch, Daniel Omondi, Elijah Ngumba

Smart Grid and Renewable Energy Vol.14 No.1，January 31, 2023

DOI: 10.4236/sgre.2023.141001 122 Downloads 639 Views Citations
The Efficacy of Hyaluronic Acid in the Restoration of Soft Tissue Volume of the Lips and Lower 1/3 of the Face: The Evolution of the Injection Technique (Articles)

Arnold William Klein

J. of Cosmetics, Dermatological Sciences and Applications Vol.1 No.4，December 28, 2011

DOI: 10.4236/jcdsa.2011.14022 6,613 Downloads 10,926 Views Citations
Patient Safety: An Injectable Education (Articles)

Arnold William Klein

J. of Cosmetics, Dermatological Sciences and Applications Vol.3 No.3B，November 26, 2013

DOI: 10.4236/jcdsa.2013.33A2009 4,185 Downloads 6,007 Views Citations
This article belongs to the Special Issue on Skin Care Treatments and Formulations
Projection of the Semi-Axes of the Ellipse of Intersection (Articles)

P. P. Klein

Applied Mathematics Vol.8 No.9，September 25, 2017

DOI: 10.4236/am.2017.89097 1,170 Downloads 2,825 Views Citations
A Salutogenic Approach to Physical Education in Schools (Articles)

Daniel Klein, Tobias Vogt

Advances in Physical Education Vol.9 No.3，August 8, 2019

DOI: 10.4236/ape.2019.93013 1,335 Downloads 4,460 Views Citations
This article belongs to the Special Issue on Sports, Health, Education
A Conceptual Perspective on Mediating Competence in Sports Coaching and Physical Education (Articles)

Tobias Vogt, Daniel Klein

Advances in Physical Education Vol.10 No.3，June 17, 2020

DOI: 10.4236/ape.2020.103016 709 Downloads 1,633 Views Citations
Morphology Study of Particle Breakage Mechanisms in a Horizontal Stirred Mill: Automated and Manual Point Counting Approaches (Articles)

Reem Roufail, Bern Klein

J. of Minerals and Materials Characterization and Eng. Vol.9 No.5，September 30, 2021

DOI: 10.4236/jmmce.2021.95035 260 Downloads 1,209 Views Citations
Characterization of the Stem Cell Fraction in Pancreatobiliary Carcinomas: The Notch Signaling Pathway as a Potential Therapeutic Target (Articles)

Elisabeth Seidel, Cynthia de Carvalho Fischer, Christopher Neumann, Anja Reutzel-Selke, Andreas Andreou, Joseph Gassner, Julia Gogolok, Peter Tang, Anja Schirmeier, Fritz Klein, Igor M. Sauer, Johann Pratschke, Marcus Bahra, Rosa B. Schmuck

Journal of Cancer Therapy Vol.9 No.6，June 8, 2018

DOI: 10.4236/jct.2018.96040 819 Downloads 2,169 Views Citations
This article belongs to the Special Issue on Cancer Stem Cells
Thermal Analysis of Sclerotium of Pleurotus tuber-regium (osu) for Effective Drying (Articles)

Austin I. Gbasouzor, Klein Ileleji

World Journal of Engineering and Technology Vol.11 No.1，February 28, 2023

DOI: 10.4236/wjet.2023.111011 103 Downloads 518 Views Citations

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