Vol. 76 No. 1 (2023)

Published: 30-01-2023

Full Issue

Table of Contents

Mathematics

Projective Embeddings of Ball Quotients, Birational to a Bi-elliptic Surface

Azniv Kasparian

3-11
- Full Text
Geometry of CR-slant Warped Products in Nearly Trans-Sasakian Manifolds

Lamia S. Alqahtani, Mića S. Stanković

12-22
- Full Text
Two New Modifications of the InterCriteria Analysis

Peter M. Vassilev, Lyudmila P. Todorova, Elenko P. Popov, Radostina N. Georgieva, Chavdar K. Slavov, Krassimir T. Atanassov

23-34
- Full Text

Biology

Antibacterial Activity of Combined Nanodiamonds and Snail Fractions with Biocompounds with MW below 10 kDa and above 30 kDa

Elmira Daskalova, Mihaela Belouhova, Nellie Zheleva, Yana Topalova, Lyudmila Velkova, Aleksandar Dolashki, Pavlina Dolashka

35-43
- Full Text
Chemical Composition, Scolicidal Effects and Antimicrobial Activities of Green Macroalga Ulva intestinalis

Tuğba Cebeci

44-55
- Full Text
Protein Amadoriase Activity of the Escherichia coli K-12 Glycolytic Enzyme Phosphoglucose Isomerase

Elitsa Boteva, Konstantin Doychev, Rositsa Tsekovska, Yordan Handzhyski, Ivan Ivanov, Roumyana Mironova

56-64
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Space Sciences

Application of CORSIMA (Cosmic Ray Spectrum and Intensity in Middle Atmosphere) Model for Solar Cosmic Rays. Case Study of the Extremes GLE 05 and GLE 69

Simeon Asenovski, Peter I. Y. Velinov, Lachezar Mateev

65-74
- Full Text

Engineering Sciences

Simulation and Real-time Application of the Load Cell-based Segway

Muhammed Mustafa Kelek, Tolga Özer, Uğur Fidan, Yüksel Oğuz

75-83
- Full Text
A Novel Neural Collaborative Filtering Recommendation Based on Side Information Fusion

Ruihui Mu

84-95
- Full Text
Applying the VIKOR Method to Select the Optimal Underground Mining Technology

Sanja Bajić, Dragoljub Bajić , Branko Gluščević, Vesna Ristić Vakanjac

96-104
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Medicine

Prioritization of Genetic Variants Predisposing to Alzheimer's Disease in Young Healthy Bulgarian Individuals Using Centenarian Exomes

Dragomira Nikolova, Lubomir Balabanski, Dimitar Serbezov, Shima Mehrabian, Maria Petrova, Latchezar Traykov, Draga Toncheva

105-113
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SEIR Model Analysis of the Omicron Variant Spread in Bulgaria – an Empirical Study

Ognyan Kounchev, Georgi Boyadzhiev, Georgi Simeonov, Methody Kunchev, Zhana Kuncheva

114-119
- Full Text
Radical Cystectomy as a Cause of an Increased Neuroendocrine Response

Petya Hubenova, Plamen Krastev, Atanas Temelkov

120-127
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Comparison of the Effectiveness of Fluoride versus Grape Seed Extract in Biomimetic Remineralization of Dentin

Simge Vural, Zeynep Ökte

128-137
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Periodontal Status of Active Age Population in the Republic of Bulgaria

Stanislav Nenov, Petar Bozhinov, Boyko Bonev

138-145
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Agricultural Sciences

Estimation Chickpea Species and Productivity per Decare with Synthetic Data Generation Methods

Kerim Karadağ, Fırat Keskinbıçak

146-155
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Growth Performance, Carcass Composition and Tenderness of Meat in Male Layer-type Chickens Slaughtered at Different Age

Teodora Popova, Evgeni Petkov, Maya Ignatova, Stefan Dragoev, Desislava Vlahova-Vangelova, Desislav Balev, Nikolay Kolev

156–164
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Characterization of Serpentine Soils from Eastern and Southern Rhodope Mountains (Bulgaria)

Violina Angelova, Daniela Kovacheva

165–172
- Full Text