Helu Zhang - Articles - Scientific Research Publishing

The Impact of the APOEε4 on the Number of Neurons and Gene Expression of Degenerating Neurons in the Dorsolateral Prefrontal Cortex in Alzheimer’s Patients (Articles)

Helu Zhang

Advances in Aging Research Vol.14 No.2，March 21, 2025

DOI: 10.4236/aar.2025.142005 54 Downloads 449 Views Citations
On the Maximum Likelihood and Least Squares Estimation for the Inverse Weibull Parameters with Progressively First-Failure Censoring (Articles)

Amal Helu

Open Journal of Statistics Vol.5 No.1，February 26, 2015

DOI: 10.4236/ojs.2015.51010 4,384 Downloads 6,719 Views Citations
On Marginal Distributions under Progressive Type II Censoring: Similarity/Dissimilarity Properties (Articles)

Amal Helu, Hani Samawi

Open Journal of Statistics Vol.7 No.4，August 11, 2017

DOI: 10.4236/ojs.2017.74044 891 Downloads 2,013 Views Citations
Molecular Identification of Echinococcus spp. and Other Taeniid Tapeworms Using Next-Generation Sequence Analysis of PCR Amplified 18s rRNA Gene (Articles)

Rasmi Abu-Helu, George Kokaly, Sajeda Nojoum, Imad Matouk, Murad Ibrahim, Ibrahim Abbasi

American Journal of Molecular Biology Vol.15 No.1，December 24, 2024

DOI: 10.4236/ajmb.2025.151006 75 Downloads 365 Views Citations
An Efficient and Concise Algorithm for Convex Quadratic Programming and Its Application to Markowitz’s Portfolio Selection Model (Articles)

Zhongzhen Zhang, Huayu Zhang

Technology and Investment Vol.2 No.4，November 4, 2011

DOI: 10.4236/ti.2011.24024 9,263 Downloads 13,516 Views Citations
Investigation and Analysis of Sexual Harassment in Corporate Workplace of China (Articles)

Xiaobing Zhang, Zewei Zhang

Sociology Mind Vol.2 No.3，July 13, 2012

DOI: 10.4236/sm.2012.23038 11,594 Downloads 17,235 Views Citations
Chaos Control in a Discrete Ecological System (Articles)

Limin Zhang, Chaofeng Zhang

Int'l J. of Modern Nonlinear Theory and Application Vol.1 No.3，September 28, 2012

DOI: 10.4236/ijmnta.2012.13011 7,990 Downloads 12,101 Views Citations
Crystallization and Characterization of a New Fluorescent Molecule Based on Schiff Base (Articles)

Dehua Zhang, Xiaoyan Zhang

Journal of Crystallization Process and Technology Vol.3 No.1，January 28, 2013

DOI: 10.4236/jcpt.2013.31004 8,942 Downloads 12,556 Views Citations
Mathematical Reasoning of Economic Intervening Principle Based on “Yin Yang Wu Xing” Theory in Traditional Chinese Economics (I) (Articles)

Ziqing Zhang, Yingshan Zhang

Modern Economy Vol.4 No.2，February 27, 2013

DOI: 10.4236/me.2013.42016 8,237 Downloads 11,169 Views Citations
Psychological Characteristics of Entrepreneurship of College Students in China (Articles)

Hua Zhang, Ying Zhang

Psychology Vol.4 No.3，March 22, 2013

DOI: 10.4236/psych.2013.43023 12,984 Downloads 19,605 Views Citations
Influence Factor Analysis on Strength of Lime-Fly Ash Loess (Articles)

Yufen Zhang, Zhiquan Zhang

Engineering Vol.5 No.6，June 19, 2013

DOI: 10.4236/eng.2013.56068 7,720 Downloads 9,800 Views Citations
Dynamics of a Hyperparasitic System with Prolonged Diapause for Host* (Articles)

Limin Zhang, Chaofeng Zhang

Int'l J. of Modern Nonlinear Theory and Application Vol.2 No.4，November 29, 2013

DOI: 10.4236/ijmnta.2013.24028 6,930 Downloads 9,438 Views Citations
The Research of Terminal Distribution Network Path Optimization (Articles)

Xufeng Zhang, Xinyu Zhang

Journal of Computer and Communications Vol.2 No.5，March 26, 2014

DOI: 10.4236/jcc.2014.25002 8,992 Downloads 11,705 Views Citations
Managerial Power, Capital Structure and Firm Value (Articles)

Chunlong Zhang, Guoliang Zhang

Open Journal of Social Sciences Vol.2 No.12，December 31, 2014

DOI: 10.4236/jss.2014.212019 9,048 Downloads 11,103 Views Citations
Research Progress on the Antineoplastic Pharmacological Effects and Mechanisms of Litchi Seeds (Articles)

Juyan Zhang, Cui Zhang

Chinese Medicine Vol.6 No.1，February 16, 2015

DOI: 10.4236/cm.2015.61003 8,148 Downloads 9,846 Views Citations
Multiband Monopole Antenna with Sector-Nested Fractal (Articles)

Jie Zhang, Wei Zhang

Wireless Engineering and Technology Vol.6 No.3，July 8, 2015

DOI: 10.4236/wet.2015.63005 8,402 Downloads 9,692 Views Citations
Filtering Function Method for the Cauchy Problem of a Semi-Linear Elliptic Equation (Articles)

Hongwu Zhang, Xiaoju Zhang

Journal of Applied Mathematics and Physics Vol.3 No.12，December 17, 2015

DOI: 10.4236/jamp.2015.312184 6,379 Downloads 7,507 Views Citations
Permanence, Periodicity and Extinction of a Delayed Biological System with Stage-Structured Preference for Predator (Articles)

Limin Zhang, Chaofeng Zhang

Journal of Applied Mathematics and Physics Vol.4 No.3，March 29, 2016

DOI: 10.4236/jamp.2016.43060 4,275 Downloads 5,251 Views Citations
New Asymptotical Stability and Uniformly Asymptotical Stability Theorems for Nonautonomous Difference Equations (Articles)

Limin Zhang, Chaofeng Zhang

Applied Mathematics Vol.7 No.10，June 7, 2016

DOI: 10.4236/am.2016.710089 2,445 Downloads 3,460 Views Citations
Uniform Persistence, Periodicity and Extinction in a Delayed Biological System with Stage Structure and Density-Dependent Juvenile Birth Rate (Articles)

Limin Zhang, Chaofeng Zhang

American Journal of Computational Mathematics Vol.6 No.2，June 20, 2016

DOI: 10.4236/ajcm.2016.62014 2,223 Downloads 3,175 Views Citations

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