Vol. 76 No. 2 (2023)

Published: 26-02-2023

Full Issue

Table of contents

Physics

The Effect of Femtosecond Laser Pulse Irradiation on the Properties of Advanced Medical Grade PDMS Polymer

Georgi Yankov, Nadya Stankova, Ekaterina Iordanova

175-183
- Full Text

Chemistry

HPLC Determination of Biperiden in Solid Dosage Forms

Trifon Milchev Angelov, Biljana Slaveva Krastanova, Alexandar Svilenov Pashev, Maya Chavdarova Jotova

184-191
- Full Text
Characterization of Essential Oils from Medicinal Plants and Assessment of Their Antimutagenic Effects Using Ames Salmonella/Microsomal Test

Pinar Goc Rasgele, Nedim Altin

192-202
- Full Text

Biology

Contribution to the Knowledge of Pontechium maculatum(Boraginaceae), a Species of High Conservation Concern in the Bulgarian Flora

Vladimir Vladimirov, Svetlana Bancheva, Daniella Ivanova

203-210
- Full Text
Food Dye Amaranth-caused Retrotransposon Polymorphism and Salicilic Acid Protection on Triticum aestivum L.

Serap Sunar

211-220
- Full Text
Forest Habitats and Vegetation of Dragoman Municipality, Western Bulgaria

Borislav Grigorov, Nikolay Velev, Assen Assenov, Momchil Nazarov, Mladen Gramatikov, Beloslava Genova, Kiril Vassilev

221-228
- Full Text
Oocyte and Embryo Quality of Infertile Patients with Classic Phenotype Polycystic Ovarian Syndrome after Controlled Ovarian Hyperstimulation

Petya Andreeva, Luboslava Valkova, Tanya Milachich, Ivanka Dimova, Atanas Shterev

229-237
- Full Text

Geology

Long-term Performance of Loess-cement

Boriana Tchakalova, Doncho Karastanev

238-246
- Full Text
Evaluation Features of Fossil and Coastal Geosites: Selecting Assessment Criteria for Geotourism Purposes

Dimitar Sinnyovsky

247-255
- Full Text

Space Sciences

Contact Angle and AFM Analysis of Glassy Carbon Coatings after an Extended Stay on the International Space Station (ISS)

Dimitar Teodosiev, Anna Bouzekova-Penkova, Silviya Simeonova, Nikolay Grozev

256-263
- Full Text
Investigation of Dst Variations in X Component at Midlatitudes during Geomagnetic Storm on February 3, 2022

Rumiana Bojilova, Plamen Mukhtarov

264-272
- Full Text

Engineering Sciences

New Sensor Technology for Determining Rock Pre-destructive States

Siya Lozanova, Martin Ralchev, Chavdar Roumenin

273-281
- Full Text
Crack Detection in Photovoltaic Panel Electroluminescence Image Using Matched Filter for Performance Loss Estimation

Mehmet Emin Tenekeci

282-291
- Full Text

Medicine

Assessment of the Subjectively Perceived Cognitive Deficit in Hospitalized Elderly Patients with Depression and the Relationship of Perceived Deficit Questionnaire – PDQ-D5 with the Socio-demographic and Clinical Factors

Jacklin Natzkova, Vessela Stoyanova

292-301
- Full Text
Our Experience with the Modular Universal Tumour and Revision System in Pediatric Patients with Ewing's Sarcoma – Report of Six Cases

Yordan Ivanov, Kircho Patrikov, Svetoslav Slavchev, Andrey Andreev

302-308
- Full Text
Mini-incision Carpal Tunnel Release

Georgi P. Georgiev, Vesselin Karabinov

309-315
- Full Text
Shock Wave Therapy in Patients with Erectile Dysfunction

Vassil Vassilev, Dimitar Stoilov, Valentin Yotovski, Aleksandar Krastanov, Metodi Milushev, Georgi Ivanov, Ivan Lillyanov, Vladislav Mladenov, Plamen Dimitrov, Boyan Stoykov, Nikolai Kolev, Krassimir Yanev, Marincho Georgiev

316-324
- Full Text
Evaluation of the Significance of the Psychosocial Risk Factors in Patients with Cerebrovascular Disease

Nedelia Shtonova, Latchezar Traykov, Lachezar Grozdinski

325-332
- Full Text