LabID-base/OpenAlex-Afillation huggingface dataset:
Proof of Guo’s Two Conjectures
Year: 2025
Type: article
Language: en
Topic: Advanced Mathematical Identities
Authors and affiliations:
raw_author_name: Chang Xu
raw_affiliation_strings: School of Mathematical Sciences, East China Normal University, Shanghai, 200241, P. R. China
raw_author_name: Xiaoxia Wang
raw_affiliation_strings: Department of Mathematics, Shanghai University, Shanghai, 200444, P. R. China
Newtouch Center for Mathematics of Shanghai University, Shanghai, 200444, P. R. China
The Effect of Deacetylation on Threonine Production by a Threonine-Producing Strain of Escherichia coli
Year: 2025
Type: article
Language: en
Topic: Microbial Metabolic Engineering and Bioproduction
Authors and affiliations:
raw_author_name: N. S. Plekhanova
raw_affiliation_strings: Federal Research Center Fundamentals of Biotechnology, Russian Academy of Sciences, 119071, Moscow, Russia
Mendeleev Russian University of Chemical Technology, 125047, Moscow, Russia
raw_author_name: V. A. Livshits
raw_affiliation_strings: Kurchatov Complex of NBICS Nature-like Technologies, 123182, Moscow, Russia
raw_author_name: T. V. Khijniak
raw_affiliation_strings: Federal Research Center Fundamentals of Biotechnology, Russian Academy of Sciences, 119071, Moscow, Russia
raw_author_name: M. S. Yurkova
raw_affiliation_strings: Federal Research Center Fundamentals of Biotechnology, Russian Academy of Sciences, 119071, Moscow, Russia
raw_author_name: A. N. Fedorov
raw_affiliation_strings: Federal Research Center Fundamentals of Biotechnology, Russian Academy of Sciences, 119071, Moscow, Russia
“How about our stance?”: college students’ stance on using artificial intelligence educational tools
Year: 2025
Type: article
Language: en
Topic: Artificial Intelligence in Healthcare and Education
Authors and affiliations:
raw_author_name: Rex Bringula
raw_affiliation_strings: University of the East, 2219 CM Recto Avenue, Sampaloc, Manila, 1008, Philippines
raw_author_name: Arlene Trillanes
raw_affiliation_strings: National University Philippines, Manila, Philippines
raw_author_name: Annaliza Catacutan-Bangit
raw_affiliation_strings: National University Philippines, Manila, Philippines
A fully mechanical method and experiment to harvest multiple arm joint energy
Year: 2025
Type: article
Language: en
Topic: Innovative Energy Harvesting Technologies
Authors and affiliations:
raw_author_name: Yisong Tan
raw_affiliation_strings: School of Mechanical Engineering, Northeast Electric Power University, Jilin, China
raw_author_name: Xiaorui Wang
raw_affiliation_strings: School of Mechanical Engineering, Northeast Electric Power University, Jilin, China
raw_author_name: Hengchuan Zhang
raw_affiliation_strings: School of Mechanical Engineering, Northeast Electric Power University, Jilin, China
raw_author_name: Xiaoqiang Zhang
raw_affiliation_strings: School of Mechanical Engineering, Northeast Electric Power University, Jilin, China
raw_author_name: Limin Ren
raw_affiliation_strings: School of Mechanical Engineering, Northeast Electric Power University, Jilin, China
The Mediating Role of Teacher Leader Organizational Citizenship Behaviour on the Relationship Between Subject Servant Leadership and Teacher Commitment
Year: 2025
Type: article
Language: en
Topic: Education and Communication Studies
Authors and affiliations:
raw_author_name: Kim Peng Teh
raw_affiliation_strings: National Institute of Educational Management and Leadership, Ministry of Education Malaysia, Genting Highlands Branch
Department Educational Management and Leadership, National Institute of Educational Management and Leadership, Ministry of Education Malaysia, Genting Highlands Branch, Pahang Darul Makmur, Malaysia
raw_author_name: David Gurr
raw_affiliation_strings: The University of Melbourne
Faculty of Education, The University of Melbourne, Parkville, Australia
raw_author_name: Mei Kin Tai
raw_affiliation_strings: Taylor’s University
School of Education, Taylor's University, Subang Jaya, Selangor Darul Ehsan, Malaysia
raw_author_name: Abdull Kareem Omar
raw_affiliation_strings: Sultan Idris Education University
Department of Educational Management, Sultan Idris Education University, Tanjong Malim, Perak Darul Ridzuan, Malaysia
Assessment of the Economic Impact of the Saiga Population on Pasture Ecosystems and Agriculture
Year: 2025
Type: article
Language: en
Topic: Rangeland Management and Livestock Ecology
Authors and affiliations:
raw_author_name: Gulshat Aiesheva
raw_affiliation_strings: Institute of Digital Economy and Sustainable Development, Zhangir Khan West Kazakhstan Agrarian-Technical University, Oral 090009, Kazakhstan
raw_author_name: Aigul Kazambayeva
raw_affiliation_strings: Institute of Digital Economy and Sustainable Development, Zhangir Khan West Kazakhstan Agrarian-Technical University, Oral 090009, Kazakhstan
raw_author_name: Saltanat Yessengaliyeva
raw_affiliation_strings: Institute of Digital Economy and Sustainable Development, Zhangir Khan West Kazakhstan Agrarian-Technical University, Oral 090009, Kazakhstan
raw_author_name: Kanbibi Nursapina
raw_affiliation_strings: Institute of Digital Economy and Sustainable Development, Zhangir Khan West Kazakhstan Agrarian-Technical University, Oral 090009, Kazakhstan
Ultralow-Power Tuning and Nonvolatile Operation on a Hybrid Silicon Nitride/Barium Titanate Integrated Photonics Platform
Year: 2025
Type: article
Language: en
Topic: Ferroelectric and Piezoelectric Materials
Authors and affiliations:
raw_author_name: Xin Wang
raw_affiliation_strings: Shanghai Jiao Tong University
State Key Lab of Photonics and Communications, Department of Electron Engineering
raw_author_name: Jie Tu
raw_affiliation_strings: East China Normal University
Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics
Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics, East China Normal University, Shanghai 200241, China
raw_author_name: Min Sun
raw_affiliation_strings: Shanghai Jiao Tong University
State Key Lab of Photonics and Communications, Department of Electron Engineering
raw_author_name: Wenfeng Zhou
raw_affiliation_strings: Shanghai Jiao Tong University
State Key Lab of Photonics and Communications, Department of Electron Engineering
State Key Lab of Photonics and Communications, Department of Electron Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
raw_author_name: Zhibo Cheng
raw_affiliation_strings: Shanghai Jiao Tong University
State Key Lab of Photonics and Communications, Department of Electron Engineering
State Key Lab of Photonics and Communications, Department of Electron Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
raw_author_name: Yikai Su
raw_affiliation_strings: Shanghai Jiao Tong University
State Key Lab of Photonics and Communications, Department of Electron Engineering
State Key Lab of Photonics and Communications, Department of Electron Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
raw_author_name: Binbin Chen
raw_affiliation_strings: East China Normal University
Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics
Key Laboratory of Polar Materials and Devices (MOE) and Department of Electronics, East China Normal University, Shanghai 200241, China
raw_author_name: Yong Zhang
raw_affiliation_strings: Shanghai Jiao Tong University
State Key Lab of Photonics and Communications, Department of Electron Engineering
State Key Lab of Photonics and Communications, Department of Electron Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Lux-Biosensors for Analyzing the Intracellular Pool of Macroergic Compounds and Reducing Equivalents
Year: 2025
Type: article
Language: en
Topic: bioluminescence and chemiluminescence research
Authors and affiliations:
raw_author_name: R. N. Al Ebrahim
raw_affiliation_strings: Moscow Institute of Physics and Technology, 141701, Dolgoprudny, Moscow oblast, Russia
raw_author_name: S. V. Bazhenov
raw_affiliation_strings: Laboratory of Microbiology, Russian Biotechnological University, 125080, Moscow, Russia
Moscow Institute of Physics and Technology, 141701, Dolgoprudny, Moscow oblast, Russia
raw_author_name: M. Yu. Vyssokikh
raw_affiliation_strings: Belozerskii Research Institute of Physicochemical Biology, Moscow State University, 119992, Moscow, Russia
Kulakov National Medical Research Center for Obstetrics, Gynecology, and Perinatology, Ministry of Healthcare of the Russian Federation, 117997, Moscow, Russia
raw_author_name: Y. E. Liu
raw_affiliation_strings: Moscow Institute of Physics and Technology, 141701, Dolgoprudny, Moscow oblast, Russia
raw_author_name: A. D. Vlasova
raw_affiliation_strings: Moscow Institute of Physics and Technology, 141701, Dolgoprudny, Moscow oblast, Russia
raw_author_name: S. M. Bukhalovich
raw_affiliation_strings: Moscow Institute of Physics and Technology, 141701, Dolgoprudny, Moscow oblast, Russia
raw_author_name: I. V. Manukhov
raw_affiliation_strings: Moscow Institute of Physics and Technology, 141701, Dolgoprudny, Moscow oblast, Russia
3D Bioprinting as a Method of Tissue Engineering: Applications and Prospects
Year: 2025
Type: article
Language: en
Topic: 3D Printing in Biomedical Research
Authors and affiliations:
raw_author_name: A. M. Aimaletdinov
raw_affiliation_strings: Kazan (Volga Region) Federal University, 420008, Kazan, Russia
raw_author_name: A. G. Malanieva
raw_affiliation_strings: Kazan (Volga Region) Federal University, 420008, Kazan, Russia
raw_author_name: M. A. Tambovsky
raw_affiliation_strings: Kazan (Volga Region) Federal University, 420008, Kazan, Russia
raw_author_name: E. Yu. Zakirova
raw_affiliation_strings: Kazan (Volga Region) Federal University, 420008, Kazan, Russia
Three-way experience replay for the prediction under concept drift
Year: 2025
Type: article
Language: en
Topic: Data Stream Mining Techniques
Authors and affiliations:
raw_author_name: Jing Wang
raw_affiliation_strings: School of Management, Beijing Institute of Technology, Beijing, 100081, China
raw_author_name: Yanbing Ju
raw_affiliation_strings: School of Management, Beijing Institute of Technology, Beijing, 100081, China
raw_author_name: Peiwu Dong
raw_affiliation_strings: School of Economics, Beijing Institute of Technology, Beijing, 100081, China
raw_author_name: Tian Ju
raw_affiliation_strings: International College, China Agricultural University, Beijing, 100083, China
A Remotely Actuated Multifunctional Nitinol–PMMA Smart Biocomposite: Microcellular Foaming, Shape Morphing, and Controlled Drug Release
Year: 2025
Type: article
Language: en
Topic: Shape Memory Alloy Transformations
Authors and affiliations:
raw_author_name: Donghwan Lim
raw_affiliation_strings: School of Mechanical Engineering
Yonsei University
School of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
raw_author_name: Jaehoo Kim
raw_affiliation_strings: Convergence Research Center for Solutions to Electromagnetic Interference in Future-mobility
Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeollabuk-do 55324, Republic of Korea
Korea Institute of Science and Technology (KIST)
raw_author_name: Tae Young Kim
raw_affiliation_strings: School of Electrical and Electronic Engineering
Yonsei University
School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
raw_author_name: Jiwon Kwon
raw_affiliation_strings: Convergence Research Center for Solutions to Electromagnetic Interference in Future-mobility
Department of Chemical and Biological Engineering
Korea Institute of Science and Technology (KIST)
Korea University
Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
Convergence Research Center for Solutions to Electromagnetic Interference in Future-mobility, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
raw_author_name: Jaewoo Kim
raw_affiliation_strings: Convergence Research Center for Solutions to Electromagnetic Interference in Future-mobility
Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeollabuk-do 55324, Republic of Korea
Korea Institute of Science and Technology (KIST)
Convergence Research Center for Solutions to Electromagnetic Interference in Future-mobility, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
raw_author_name: Jungmok Seo
raw_affiliation_strings: School of Electrical and Electronic Engineering
Yonsei University
School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
raw_author_name: Yong Hoon Jang
raw_affiliation_strings: School of Mechanical Engineering
Yonsei University
raw_author_name: Sung Woon Cha
raw_affiliation_strings: School of Mechanical Engineering
Yonsei University
raw_author_name: Jun Young Yoon
raw_affiliation_strings: School of Mechanical Engineering
Yonsei University
School of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
Impact of filler metal on microstructural and mechanical performance of ASS304L/DSS2205 steel dissimilar GTA weld
Year: 2025
Type: article
Language: en
Topic: Microstructure and Mechanical Properties of Steels
Authors and affiliations:
raw_author_name: Gyanendu Sharma
raw_affiliation_strings: Department of Mechanical Engineering, GLA University
Department of Mechanical Engineering, GLA University, Mathura, Uttar Pradesh, India
raw_author_name: Bhupendra Singh Chauhan
raw_affiliation_strings: Department of Mechanical Engineering, GLA University
Department of Mechanical Engineering, GLA University, Mathura, Uttar Pradesh, India
Structure and Magnetic Properties of Exchange-Coupled Pairs [Ni3+–$${\text{O}}_{\text{int}}^{ - }$$]6– in Monocrystalline BaF2: An EPR Study
Year: 2025
Type: article
Language: en
Topic: Inorganic Fluorides and Related Compounds
Authors and affiliations:
raw_author_name: V. A. Ulanov
raw_affiliation_strings: Kazan State Power Engineering University, 420066, Kazan, Russia
Zavoisky Kazan Institute of Physics and Technology, Federal Research Center “Kazan Scientific Center,” Russian Academy of Sciences, 420029, Kazan, Russia
Zavoisky Kazan Institute of Physics and Technology, Federal Research Center "Kazan Scientific Center," Russian Academy of Sciences, 420029, Kazan, Russia
raw_author_name: R. B. Zaripov
raw_affiliation_strings: Zavoisky Kazan Institute of Physics and Technology, Federal Research Center “Kazan Scientific Center,” Russian Academy of Sciences, 420029, Kazan, Russia
Zavoisky Kazan Institute of Physics and Technology, Federal Research Center "Kazan Scientific Center," Russian Academy of Sciences, 420029, Kazan, Russia
raw_author_name: I. V. Yatsyk
raw_affiliation_strings: Zavoisky Kazan Institute of Physics and Technology, Federal Research Center “Kazan Scientific Center,” Russian Academy of Sciences, 420029, Kazan, Russia
Zavoisky Kazan Institute of Physics and Technology, Federal Research Center "Kazan Scientific Center," Russian Academy of Sciences, 420029, Kazan, Russia
raw_author_name: G. S. Shakurov
raw_affiliation_strings: Zavoisky Kazan Institute of Physics and Technology, Federal Research Center “Kazan Scientific Center,” Russian Academy of Sciences, 420029, Kazan, Russia
Zavoisky Kazan Institute of Physics and Technology, Federal Research Center "Kazan Scientific Center," Russian Academy of Sciences, 420029, Kazan, Russia
In Vitro Study of Degradation of Materials Based on Natural Silk Fabrics for Regenerative Medicine
Year: 2025
Type: article
Language: en
Topic: Silk-based biomaterials and applications
Authors and affiliations:
raw_author_name: E. I. Podbolotova
raw_affiliation_strings: Academician Shumakov National Medical Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation, 123182, Moscow, Russia
raw_author_name: A. R. Pashutin
raw_affiliation_strings: Academician Shumakov National Medical Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation, 123182, Moscow, Russia
raw_author_name: A. E. Efimov
raw_affiliation_strings: Academician Shumakov National Medical Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation, 123182, Moscow, Russia
raw_author_name: O. I. Agapova
raw_affiliation_strings: Academician Shumakov National Medical Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation, 123182, Moscow, Russia
raw_author_name: I. I. Agapov
raw_affiliation_strings: Academician Shumakov National Medical Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation, 123182, Moscow, Russia
α-Selective Ring-Opening of Bicyclo[1.1.0]butanes to Access Spirocyclobutyl Lactams
Year: 2025
Type: article
Language: en
Topic: Radical Photochemical Reactions
Authors and affiliations:
raw_author_name: Qinglong Liu
raw_affiliation_strings: Central Hospital of Dalian University of Technology, School of Chemistry
Dalian University of Technology
Central Hospital of Dalian University of Technology, School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
raw_author_name: Boyang Mu
raw_affiliation_strings: Central Hospital of Dalian University of Technology, School of Chemistry
Dalian University of Technology
Central Hospital of Dalian University of Technology, School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
raw_author_name: Haina Zhao
raw_affiliation_strings: Central Hospital of Dalian University of Technology, School of Chemistry
Dalian University of Technology
raw_author_name: Wangze Song
raw_affiliation_strings: Central Hospital of Dalian University of Technology, School of Chemistry
Dalian University of Technology
Central Hospital of Dalian University of Technology, School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
Explainability, Safety Cues, and Trust in GenAI Advisors: A SEM–ANN Hybrid Study
Year: 2025
Type: article
Language: en
Topic: AI in Service Interactions
Authors and affiliations:
raw_author_name: Stefanos Balaskas
raw_affiliation_strings: Department of Physics, School of Sciences, Democritus University of Thrace, Kavala Campus, 65404 Kavala, Greece
raw_author_name: Ioannis Stamatiou
raw_affiliation_strings: Department of Business Administration, University of Patras, 26504 Patras, Greece
raw_author_name: George Androulakis
raw_affiliation_strings: Department of Business Administration, University of Patras, 26504 Patras, Greece
The origin of the self-sustained oscillations in fluidic oscillators and the role of some internal dimensions
Year: 2025
Type: article
Language: en
Topic: Plasma and Flow Control in Aerodynamics
Authors and affiliations:
raw_author_name: David Márquez
raw_affiliation_strings: Fluid Mechanics Department, Universitat Politècnica de Catalunya , 08034 Barcelona,
raw_author_name: Josep M. Bergada
raw_affiliation_strings: Fluid Mechanics Department, Universitat Politècnica de Catalunya , 08034 Barcelona,
Barriers and Facilitators to Enhanced Recovery Protocol Implementation for Neonatal Intestinal Surgery
Year: 2025
Type: article
Language: en
Topic: Enhanced Recovery After Surgery
Authors and affiliations:
raw_author_name: Mallory N. Perez
raw_affiliation_strings: Northwestern Quality Improvement, Research & Education in Surgery (NQUIRES), Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Division of Pediatric Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
raw_author_name: Maxwell Wilberding
raw_affiliation_strings: Northwestern Quality Improvement, Research & Education in Surgery (NQUIRES), Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois
raw_author_name: Goeto Dantes
raw_affiliation_strings: Division of Pediatric Surgery, Department of Surgery, Emory University, Atlanta, Georgia
raw_author_name: Alison Lehane
raw_affiliation_strings: Northwestern Quality Improvement, Research & Education in Surgery (NQUIRES), Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Division of Pediatric Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
raw_author_name: Mehul V. Raval
raw_affiliation_strings: Northwestern Quality Improvement, Research & Education in Surgery (NQUIRES), Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Division of Pediatric Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
raw_author_name: Gustave H. Falciglia
raw_affiliation_strings: Division of Neonatology, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
raw_author_name: Nicholas E. Burjek
raw_affiliation_strings: Department of Anesthesiology, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
raw_author_name: Jane L. Holl
raw_affiliation_strings: Department of Neurology, Biological Sciences Division and Center for Healthcare Delivery Science and Innovation, University of Chicago, Chicago
raw_author_name: Willemijn L.A. Schäfer
raw_affiliation_strings: Northwestern Quality Improvement, Research & Education in Surgery (NQUIRES), Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois. Electronic address: wilhelmina.schaefer@northwestern.edu
Scalp-and-replacement of oversize particles on internal stability erosion assessment
Year: 2025
Type: article
Language: en
Topic: Erosion and Abrasive Machining
Authors and affiliations:
raw_author_name: M. Li
raw_affiliation_strings: British Columbia Hydro and Power Authority * , Burnaby,
raw_author_name: R. J. Fannin
raw_affiliation_strings: University of British Columbia † , Vancouver,
raw_author_name: M. Foster
raw_affiliation_strings: Dam Consulting Services Pty Ltd ‡ , Bayview,
raw_author_name: L. Yan
raw_affiliation_strings: British Columbia Hydro and Power Authority § , Burnaby,
Kochia Scoparia Seed Infusion Ameliorates Behavioral Impairment in Rats Subjected to Calorie-Dense Diet
Year: 2025
Type: article
Language: en
Topic: Biochemical Analysis and Sensing Techniques
Authors and affiliations:
raw_author_name: M. Reyzov
raw_affiliation_strings: Department of Pharmacology and Clinical Pharmacology and Therapeutics, Faculty of Medicine , Medical University “Prof. Dr. Paraskev Stoyanov” – Varna , Bulgaria
raw_author_name: S. Gancheva
raw_affiliation_strings: Department of Pharmacology and Clinical Pharmacology and Therapeutics, Faculty of Medicine , Medical University “Prof. Dr. Paraskev Stoyanov” – Varna , Bulgaria
raw_author_name: M. Eftimov
raw_affiliation_strings: Department of Pharmacology and Clinical Pharmacology and Therapeutics, Faculty of Medicine , Medical University “Prof. Dr. Paraskev Stoyanov” – Varna , Bulgaria
raw_author_name: M. Todorova
raw_affiliation_strings: Department of Pharmacology and Clinical Pharmacology and Therapeutics, Faculty of Medicine , Medical University “Prof. Dr. Paraskev Stoyanov” – Varna , Bulgaria
raw_author_name: S. Valcheva-Kuzmanova
raw_affiliation_strings: Department of Pharmacology and Clinical Pharmacology and Therapeutics, Faculty of Medicine , Medical University “Prof. Dr. Paraskev Stoyanov” – Varna , Bulgaria
raw_author_name: M. Zhelyazkova-Savova
raw_affiliation_strings: Department of Pharmacology and Clinical Pharmacology and Therapeutics, Faculty of Medicine , Medical University “Prof. Dr. Paraskev Stoyanov” – Varna , Bulgaria