JOSA year 16 no. 2 (35)
eISSN 2068-3049

CONTENTS

SECTION A – Mathematics

1. ON 4-DIMENSIONAL GOLDEN-WALKER STRUCTURES

(Murat Savas, Mustafa Ozkan, Murat Iscan) / 89

2. THE NATURAL LIFT CURVE OF THE SPHERICAL INDICATRIX OF A SPACELIKE CURVE WITH NULL BINORMAL IN MINKOWSKI 3-SPACE

(Mustafa Çalişkan, Evren Ergün, Mustafa Bilici) / 101

3. A NEW EPIMORPHISM OF MATRIX COALGEBRAS

(Georgiana Velicu) / 107

4. ON INTEGRAL INVARIANTS OF RULED SURFACES GENERATED BY THE DARBOUX FRAMES OF THE TRANSVERSAL INTERSECTION CURVE OF TWO SURFACES IN E³

(Engin As, Ayhan Sarioglugil) / 111

5. SOME REFINEMENTS OF HARDY-TYPE INEQUALITIES

(Loredana Ciurdariu) / 129

SECTION B – Chemistry

1. SPECTRAL AND MICROSCOPY STUDY ON UV-C RADIATION BIOEFFECTS IN SOME VEGETAL ORGANISMS

(A.C. Uta , A. Gritco Toderascu, G. Vochita, C. Nadejde, D. Creanga) / 141

2. MODELING OF THE DRYING KINETICS OF MYRTUS COMMUNIS L.

(M. Lekrati, L.Zerouk, A. Ibnlfassi, M. Mesradi, E. Saad) / 149

SECTION C – Physics

1. DECREASING FALSE ASSUMPTION FOR IMPROVED BREAST CANCER DETECTION

(Chiranji Lal Chowdhary, Gudavalli Vijaya Krishna Sai, D. P. Acharjya ) / 157

2. CONTRIBUTIONS TO THE IMPROVEMENT OF THE TRIBOLOGICAL BEHAVIOUR OF HIP IMPLANT JOINTS

(Simona Mihai, Viviana Filip, Mircea Vladescu) / 177