Volume 25 Issue 5

Published: 2025-06-25

Contents


Article
Doubling the Chromosome Number of Black Poplar Trees (Populus nigra L.) by Colchicine In vitro

Ammar Z. Kassab-Bashi, Nathim Th. Saieed, Omar M. Omar,

The possibility of inducing chromosomal polyploidy was studied for Black poplar (Populus nigra L.) which micropropagated from stem cutting by exposure to different colchicine concentrations...

DOI: 10.33899/rjs.2014.131363

Pages: 1-16
Studying the Linear and the Mass Attenuation Coefficient of Gamma Rays for Certain Building Materials used in Iraq

Laith A. Najim, Israa M. Hassan,

In this research, the photons of gamma rays emitted from radioactive sources (133 Ba, 137Cs,60Co) at energies (81, 356, 662, 1173, 1332) keV respectively have been used to examine the linear and...

DOI: 10.33899/rjs.2014.131370

Pages: 75-85
Role of Piperonyl Butoxide in Growth of Wheat (Triticum aestivum L.) Grown Under of Drought Stress

Mohamed S. Faysal,

The experiment was conducted in the wire house in the Department of Biology, College of Education, Mosul University according to the complete randomized design (C.R.D) to establish the synergetic...

DOI: 10.33899/rjs.2014.131366

Pages: 26-37
Determination of the Background Radiation Level in Mosul University Campus Using Multiple Technologies

Ammir H. Ali, Ahmed K. Mh, Hana I. Hassan,

The current study aims to determine the background radiation level in Mosul University Campus using multiple technologies, portable detector type Inspector EXP+ containing Geiger-Mueller tube,...

DOI: 10.33899/rjs.2014.131371

Pages: 86-100
Extraction of some Antimicrobial Peptides from Rubiaceae Flowers and Studying their Activity Against some Pathogenic Bacteria

Mohammed A. Mahmood, Muhsin A. Essa,

This research was performed to isolate and purify the Plant Antimicrobial peptides (Cyclotides type) from Rubiaceae family (Gardenia florida and Coffea arabica), and study their antimicrobial...

DOI: 10.33899/rjs.2014.131367

Pages: 38-47
New Record of Two Species of Black Widow Spider in Mosul City (Iraq)

Riyad A. Al-Iraqi, Najah S. Nayef,

Two species of black widow spiders were recorded for the first time in Mosul city during the summer of 2012 and 2013. The spiders were the red back widow spider (Latrodectus hasselti ) and a...

DOI: 10.33899/rjs.2014.131365

Pages: 17-25
Oxidants and Antioxidants Levels for Elderly Male People

Luay A. Al-Helaly, Maryam A. Saleh,

The research included a study of oxidants and antioxidants levels with aging such as: smoking, physical exercise and fasting during Ramadan on elderly by measuring (14) oxidants and antioxidants...

DOI: 10.33899/rjs.2014.131368

Pages: 48-64
Using Gamma-Rays to Determine the Homogeneity of Alloy (Al-Mn) Grafted by some Oxides

Raad A. Rasool, Ahmed K. Muhemeed, Muhsun W. Albadrani,

This research includes preparing samples of composite materials by using casting sand and hand mixing to disperse particles oxides such as (Al2O3) and (ZnO and (NiO) in the substrate of bases...

DOI: 10.33899/rjs.2014.131369

Pages: 65-74