JOSA year 18 no. 1 (42) eISSN 2068-3049 |
CONTENTS
SECTION A – Mathematics
1. APPLICATION OF ABOODH DIFFERENTIAL TRANSFORM METHOD ON SOME HIGHER ORDER PROBLEMS (Jamshad Ahmad, Jawaria Tariq) / 5 2. NUMERICAL COMPUTATION OF INITIAL VALUE PROBLEM BY VARIOUS TECHNIQUES (Azizul Hasan) / 19 3. COMPARISON RESULTS OF LINEAR DIFFERENTIAL EQUATIONS WITH FUZZY BOUNDARY VALUES (Hulya Gultekin Citil) / 33 4. NON-NEWTONIAN IMPROPER INTEGRALS (Murat Erdogan, Cenap Duyar) / 49 5. ON THE NATURAL LIFT CURVE AND THE BERTRAND MATE (Evren Ergun, Mustafa Caliskan) / 75 6. THE LAGUERRE TYPE d- ORTHOGONAL POLYNOMIALS (Duriye Korkmaz-Duzgun, Esra Erkus-Duman) / 95 (Talat Korpinar, Ridvan Cem Demirkol) / 107 8. PADOVAN AND PELL-PADOVAN QUATERNIONS (Dursun Tasci) / 125 9. MODULES THAT HAVE A WEAK δ-SUPPLEMENT IN EVERY COFINITE EXTENSION (Esra Ozturk Sozen, Senol Eren) / 133 (Gabriel Croitoru, Valentina Ofelia Robescu, Oana Oprisan, Duica Mircea, Dorin Claudiu Manolache) / 139 (Sorina-Geanina Stanescu, Alexandra Danila, Maria-Gabriela Horga) / 159 12. USING BENFORD’S LAW IN THE ANALYSIS OF SOCIO-ECONOMIC DATA (Dan-Marius Coman, Maria-Gabriela Horga, Alexandra Danila, Mihaela-Denisa Coman) / 167 13. BOUNDS FOR THE LAPLACIAN EIGENVALUE OF GRAPHS USING 2-ADJACENCY (Serife Buyukkose, Semiha Basdas Nurkahli) / 175 (Gabriel Gorghiu, Laura Monica Gorghiu, Lucia Pascale) / 183 SECTION B – Chemistry
(Emilia Amzoiu, Manuel Amzoiu, Rodica Sirbu, Gabriela Stanciu, Mati Erand, Roxana Sandulovici) / 191 2. DETERMINATION VISCOSITY INDEX IMPROVERS FOR MULTI-GRADE OIL OF COPOLYMER POLYETHYLENE-PROPYLENE (Ioana Stanciu) / 197 (Mircioiu, Valentina Anuta, Gabriela Stanciu, Rodica Sirbu, Roxana Sandulovici) / 203 4. COPPER TOLERANCE AND BIOACCUMULATION IN SEEDLINGS OF WHITE MUSTARD (SINAPIS ALBA L.) (Dan Razvan Popoviciu, Ticuta Negreanu-Pirjol, Rodica Sirbu) / 211 (Elena Corina Popescu, Daniela Avram) / 219 (Daniel Dunea, Danut Tanislav, Alexandru Stoica, Petre Bretcan, George Muratoreanu, Loredana Neagu Frasin, Daniela Alexandrescu, Nicoleta Iliescu) / 225 (Mihai Manolache, Emin Cadar, Dinu Antonescu, Constantin Mircioiu, Irina Prasacu, Roxana Sandulovici) / 239 SECTION C – Physics
1. UNIFIED STUDY OF ND4I BY LATTICE DYNAMICAL APPROACH (Umesh Chandra Srivastava) / 247 2. STUDIES REGARDING POLLUTING AGENTS IN BLACK SEA ALGAE (Emin Cadar, Alef Mustafa, Aneta Tomescu, Melat Cherim) / 255 (Cristina Mihaela Nicolescu, Marius Bumbac, Simona Mihai, Anca Irina Gheboianu, Mihai Constantin Balasa, Viviana Filip, Stefan Cuculici, Stefan Cristea, Cosmin Pantu) / 265 4. MICROSTRUCTURAL AND MECHANICAL CHARACTERIZATION OF 301 STAINLESS STEEL WELDED JOINTS (Aurora Poinescu, Simona Mihai, Ioan Alin Bucurica, Ioana Daniela Dulama, Sofia Teodorescu) / 275 (Gabriel Predusca, Iulia Monica Serban) / 283 |