Effects of telerehabilitation and YouTube platform-based exercise videos in patients with axial spondyloarthritis: a randomized controlled study
Criterion: Q2 Article
Summary Info
Authors
BAĞLAN YENTÜR SONGÜL,Boyrazlı İrem Sıla,ELBASTI MUHAMMET ŞAHİN,KOCA SÜLEYMAN SERDAR
Journal
Clinical Rheumatology
Language
İngilizce
Scope
Uluslararası
Peer Review
Hakemli
DOI
10.1007/s10067-025-07591-w
Scoring Breakdown
Base Score:29.00
Base Score Breakdown
Diğer Makaleler2.00
Q2 Makalesi25.00
Özgün Makale2.00
Total (Base)29.00
Final Score:35.09
Applied Multipliers
1. in author order
(x1.00)
Hakemli
(x1.10)
Uluslararası
(x1.10)
Calculation
29.00
× 1.00
× 1.10
× 1.10
= 35.09
Calculated: 13.08.2026 02:03
Activity
Comparison of the effects of neuromuscular electrical stimulation plus conventional treatment to those of conventional treatment alone in patients with fibromyalgia: A randomized controlled study
Criterion: Q2 Article
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL
Journal
Medicine
Language
İngilizce
Scope
Uluslararası
Peer Review
Hakemli
DOI
10.1097/MD.0000000000043933
Scoring Breakdown
Base Score:29.00
Base Score Breakdown
Diğer Makaleler2.00
Q2 Makalesi25.00
Özgün Makale2.00
Total (Base)29.00
Final Score:28.07
Applied Multipliers
2. in author order
(x0.80)
Hakemli
(x1.10)
Uluslararası
(x1.10)
Calculation
29.00
× 0.80
× 1.10
× 1.10
= 28.07
Calculated: 13.08.2026 02:03
Activity
Comparison of different exercises on muscle thickness, pain, and disability in patients with low back pain: A randomized controlled study
Criterion: Q3 Article
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL
Journal
Turkish Journal of Physical Medicine Rehabilitation
Language
Türkçe
Scope
Uluslararası
Peer Review
Hakemli
DOI
10.5606/tftrd.2026.15809
Scoring Breakdown
Base Score:24.00
Base Score Breakdown
Diğer Makaleler2.00
Q3 Makalesi20.00
Özgün Makale2.00
Total (Base)24.00
Final Score:23.23
Applied Multipliers
2. in author order
(x0.80)
Hakemli
(x1.10)
Uluslararası
(x1.10)
Calculation
24.00
× 0.80
× 1.10
× 1.10
= 23.23
Calculated: 13.08.2026 02:03
Activity
Evaluation of Disease Severity, Respiratory Muscle Strength, Respiratory Functions, Functionality, and Quality of Life in Patients with Upper Limb Lymphedema
Criterion: Q2 Article
Summary Info
Authors
AYDIN GAMZE,ATICI EMİNE,YARAŞIR EZGİ,BAĞLAN YENTÜR SONGÜL,ELBASTI MUHAMMET ŞAHİN
Journal
Clinical Breast Cancer
Language
İngilizce
Scope
Uluslararası
Peer Review
Hakemli
DOI
10.1016/j.clbc.2025.01.008
Scoring Breakdown
Base Score:29.00
Base Score Breakdown
Diğer Makaleler2.00
Q2 Makalesi25.00
Özgün Makale2.00
Total (Base)29.00
Final Score:21.05
Applied Multipliers
4. in author order
(x0.60)
Hakemli
(x1.10)
Uluslararası
(x1.10)
Calculation
29.00
× 0.60
× 1.10
× 1.10
= 21.05
Calculated: 13.08.2026 02:03
Activity
Comparison of the Effectiveness of Blinded Versus Ultrasound- Guided Trigger Point Injections into the Trapezius Muscle in Patients with Fibromyalgia
Criterion: ESCI Article
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL
Journal
ISTANBUL MEDICAL JOURNAL
Language
İngilizce
Scope
Uluslararası
Peer Review
Hakemli
DOI
10.4274/imj.galenos.2024.90236
Scoring Breakdown
Base Score:12.00
Base Score Breakdown
ESCI makalesi10.00
Özgün Makale2.00
Total (Base)12.00
Final Score:11.62
Applied Multipliers
2. in author order
(x0.80)
Hakemli
(x1.10)
Uluslararası
(x1.10)
Calculation
12.00
× 0.80
× 1.10
× 1.10
= 11.62
Calculated: 13.08.2026 02:03
Activity
Investigation of core endurance, performance and functional activities in crossfit participants
Criterion: ESCI Article
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL
Journal
JOURNAL OF BODYWORK AND MOVEMENT THERAPIES
Language
İngilizce
Scope
Uluslararası
Peer Review
Hakemli
DOI
10.1016/j.jbmt.2025.07.017
Scoring Breakdown
Base Score:12.00
Base Score Breakdown
ESCI makalesi10.00
Özgün Makale2.00
Total (Base)12.00
Final Score:11.62
Applied Multipliers
2. in author order
(x0.80)
Hakemli
(x1.10)
Uluslararası
(x1.10)
Calculation
12.00
× 0.80
× 1.10
× 1.10
= 11.62
Calculated: 13.08.2026 02:03
Activity
Kronik Boyun Ağrılı Hastalarda Egzersiz Bariyerleri ve Kinezyofobinin Değerlendirilmesi
Criterion: Ulakbim/TR Index Article
Summary Info
Authors
BAĞLAN YENTÜR SONGÜL,ELBASTI MUHAMMET ŞAHİN
Journal
Fırat Üniversitesi Sağlık Bilimleri Tıp Dergisi
Language
Türkçe
Scope
Ulusal
Peer Review
Hakemli
Scoring Breakdown
Base Score:12.00
Base Score Breakdown
Ulakbim/TR Dizin Makalesi10.00
Özgün Makale2.00
Total (Base)12.00
Final Score:10.56
Applied Multipliers
1. in author order
(x1.00)
Hakemli
(x1.10)
Ulusal
(x0.80)
Calculation
12.00
× 1.00
× 1.10
× 0.80
= 10.56
Calculated: 13.08.2026 02:03
Activity
Investigation of Q Angle and Related Factors in Osteoporosis Patients
Criterion: ESCI Article
Summary Info
Authors
Başgün Nurseda,ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL
Journal
EURASIAN JOURNAL OF MEDICINE
Language
İngilizce
Scope
Uluslararası
Peer Review
Hakemli
DOI
10.5152/eurasianjmed.2025.25946
Scoring Breakdown
Base Score:12.00
Base Score Breakdown
ESCI makalesi10.00
Özgün Makale2.00
Total (Base)12.00
Final Score:10.16
Applied Multipliers
3. in author order
(x0.70)
Hakemli
(x1.10)
Uluslararası
(x1.10)
Calculation
12.00
× 0.70
× 1.10
× 1.10
= 10.16
Calculated: 13.08.2026 02:03
Activity
Immediate Effects of Mulligan Mobilization and Kinesio Taping Techniques Applied with Combined Physical Therapy on Pain and Functional Status in Patients with Knee Osteoarthritis
Criterion: Ulakbim/TR Index Article
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL
Journal
Annals of Medical Research
Language
İngilizce
Scope
Ulusal
Peer Review
Hakemli
DOI
10.5455/annalsmedres.2024.11.241
Scoring Breakdown
Base Score:12.00
Base Score Breakdown
Ulakbim/TR Dizin Makalesi10.00
Özgün Makale2.00
Total (Base)12.00
Final Score:8.45
Applied Multipliers
2. in author order
(x0.80)
Hakemli
(x1.10)
Ulusal
(x0.80)
Calculation
12.00
× 0.80
× 1.10
× 0.80
= 8.45
Calculated: 13.08.2026 02:03
Activity
The Relationship Between Core Endurance, Physical Activity Level and Balance in Office Workers
Criterion: Q2 Article
Summary Info
Authors
BAĞLAN YENTÜR SONGÜL,YARAŞIR EZGİ
Journal
International Journal of Occupational Safety and Ergonomics (JOSE)
Language
İngilizce
Scope
Uluslararası
Peer Review
Hakemli
DOI
10.1080/10803548.2024.2387484
Scoring Breakdown
Base Score:29.00
Base Score Breakdown
Diğer Makaleler2.00
Q2 Makalesi25.00
Özgün Makale2.00
Total (Base)29.00
Final Score:35.09
Applied Multipliers
1. in author order
(x1.00)
Hakemli
(x1.10)
Uluslararası
(x1.10)
Calculation
29.00
× 1.00
× 1.10
× 1.10
= 35.09
Calculated: 13.08.2026 02:03
Activity
The effects of Pilates training on respiratory muscle strength in patients with ankylosing spondylitis
4. in author order
(x0.60)
Hakemli
(x1.10)
Ulusal
(x0.80)
Calculation
4.00
× 0.60
× 1.10
× 0.80
= 2.11
Calculated: 13.08.2026 02:03
Activity
INVESTIGATION OF RESPIRATORY MUSCLE STRENGTH AND AEROBIC
CAPACITY IN PATIENTS WITH SYSTEMIC SCLEROSIS
Criterion: Other Papers
Summary Info
Authors
BAĞLAN YENTÜR SONGÜL,BAĞLAN VOLKAN,YAMANCAN GÜLŞAH,ELBASTI MUHAMMET ŞAHİN,ÖZ BURAK,KIRKIL GAMZE
Event
2. BİLSEL INTERNATIONAL ERZURUM SCIENTIFIC RESEARCHES CONGRESS
Language
Türkçe
Scope
Uluslararası
Scoring Breakdown
Base Score:3.00
Final Score:3.30
Applied Multipliers
1. in author order
(x1.00)
Türkçe
(x1.00)
Uluslararası
(x1.10)
Calculation
3.00
× 1.00
× 1.00
× 1.10
= 3.30
Calculated: 13.08.2026 02:03
Activity
EFFECTS OF TELEREHABILITATION AND YOUTUBEⓇ PLATFORM-BASED EXERCISE VIDEOS IN PATIENTS WITH AXIAL SPONDILOARTHRITIS: A RANDOMIZED CONTROLLED STUDY
Criterion: Other Papers
Summary Info
Authors
BAĞLAN YENTÜR SONGÜL,Boyrazlı İrem Sıla,ELBASTI MUHAMMET ŞAHİN,KOCA SÜLEYMAN SERDAR
Event
Eular 2025
Language
İngilizce
Scope
Uluslararası
Scoring Breakdown
Base Score:2.50
Final Score:3.03
Applied Multipliers
1. in author order
(x1.00)
İngilizce
(x1.10)
Uluslararası
(x1.10)
Calculation
2.50
× 1.00
× 1.10
× 1.10
= 3.03
Calculated: 13.08.2026 02:03
Activity
INVESTIGATION OF BALANCE AND CORE ENDURANCE IN PATIENTS WITH FIBROMYALGIA SYNDROME
Criterion: Other Papers
Summary Info
Authors
BAĞLAN YENTÜR SONGÜL,ELBASTI MUHAMMET ŞAHİN,DAĞDEVİREN BEKİR,Çetintaş Derya
Event
Eular 2025
Language
İngilizce
Scope
Uluslararası
Scoring Breakdown
Base Score:2.50
Final Score:3.03
Applied Multipliers
1. in author order
(x1.00)
İngilizce
(x1.10)
Uluslararası
(x1.10)
Calculation
2.50
× 1.00
× 1.10
× 1.10
= 3.03
Calculated: 13.08.2026 02:03
Activity
‘Romatolojik Hastalıklarda Egzersize Yönelik Sağlık İnançları Tutumu, Kinezyofobi ve Algılanan Stresin Rolü
Criterion: Other Papers
Summary Info
Authors
ERGÜN BETÜL,ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL,YAMANCAN GÜLŞAH
Event
11. Fırat Romatoloji Sempozyumu
Language
Türkçe
Scope
Ulusal
Scoring Breakdown
Base Score:2.50
Final Score:1.40
Applied Multipliers
3. in author order
(x0.70)
Türkçe
(x1.00)
Ulusal
(x0.80)
Calculation
2.50
× 0.70
× 1.00
× 0.80
= 1.40
Calculated: 13.08.2026 02:03
Activity
Torasik Çıkış Sendromunda Pektoralis Minör Gevşetme Egzersizleri Youtube Videolarının Analizi
Criterion: Other Papers
Summary Info
Authors
Doğan Havvagül,ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL
Event
11. Fırat Romatoloji Sempozyumu
Language
Türkçe
Scope
Ulusal
Scoring Breakdown
Base Score:2.50
Final Score:1.40
Applied Multipliers
3. in author order
(x0.70)
Türkçe
(x1.00)
Ulusal
(x0.80)
Calculation
2.50
× 0.70
× 1.00
× 0.80
= 1.40
Calculated: 13.08.2026 02:03
Activity
VITAMIN D LEVEL IS ASSOCIATED WITH PAIN AND PAIN CATASTROPHIZING IN PATIENTS WITH FIBROMYALGIA SYNDROME
Criterion: Other Papers
Summary Info
Authors
BAĞLAN YENTÜR SONGÜL,ELBASTI MUHAMMET ŞAHİN
Event
Eular 2024
Language
İngilizce
Scope
Uluslararası
Scoring Breakdown
Base Score:2.50
Final Score:3.03
Applied Multipliers
1. in author order
(x1.00)
İngilizce
(x1.10)
Uluslararası
(x1.10)
Calculation
2.50
× 1.00
× 1.10
× 1.10
= 3.03
Calculated: 13.08.2026 02:03
Activity
COMPARISON OF TRIGGER POINT INJECTION APPLICATION METHODS IN MYOFASCIAL PAIN SYNDROME IN PATIENTS WITH FIBROMYALGIA SYNDROME
Criterion: Other Papers
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL
Event
Eular 2024
Language
İngilizce
Scope
Uluslararası
Scoring Breakdown
Base Score:2.50
Final Score:2.42
Applied Multipliers
2. in author order
(x0.80)
İngilizce
(x1.10)
Uluslararası
(x1.10)
Calculation
2.50
× 0.80
× 1.10
× 1.10
= 2.42
Calculated: 13.08.2026 02:03
Activity
IMMEDIATE EFFECTS OF MULLIGAN MOBILIZATION AND TAPING ON PAIN AND FUNCTIONAL STATUS IN PATIENTS WITH KNEE OSTEOARTHRITIS
Criterion: Other Papers
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL
Event
9th International ACHARAKA Congress on Medicine, Nursing, Midwifery and Health Sciences
Language
Türkçe
Scope
Uluslararası
Scoring Breakdown
Base Score:2.50
Final Score:2.20
Applied Multipliers
2. in author order
(x0.80)
Türkçe
(x1.00)
Uluslararası
(x1.10)
Calculation
2.50
× 0.80
× 1.00
× 1.10
= 2.20
Calculated: 13.08.2026 02:03
Activity
EFFECTS OF TELEREHABITATION AND YOUTUBE PLATFORM BASED EXERCISE VIDEOS IN PATIENTS WITH ANKYLOSING SPONDYLITIS
Criterion: Other Papers
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL,BOYRAZLI İrem Sıla
Event
INTERNATIONAL 6th BURSA SCIENTIFIC RESEARCHES CONGRESS
Language
Türkçe
Scope
Uluslararası
Scoring Breakdown
Base Score:2.50
Final Score:2.20
Applied Multipliers
2. in author order
(x0.80)
Türkçe
(x1.00)
Uluslararası
(x1.10)
Calculation
2.50
× 0.80
× 1.00
× 1.10
= 2.20
Calculated: 13.08.2026 02:03
Activity
EFFECTS OF NEUROMUSCULAR ELECTRICAL STIMULATION IN PATIENTS WITH FIBROMYALGIA
Criterion: Other Papers
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL
Event
INTERNATIONAL ARTUKLU CONGRESS ON MEDICINE, NURSING, MIDWIFERY, AND HEALTH SCIENCES
Language
Türkçe
Scope
Uluslararası
Scoring Breakdown
Base Score:2.50
Final Score:2.20
Applied Multipliers
2. in author order
(x0.80)
Türkçe
(x1.00)
Uluslararası
(x1.10)
Calculation
2.50
× 0.80
× 1.00
× 1.10
= 2.20
Calculated: 13.08.2026 02:03
Activity
THE RELATIONSHIP BETWEEN AEROBIC CAPACITY, BURNOUT AND PHYSICAL PERFORMANCE IN NURSES
Criterion: Other Papers
Summary Info
Authors
Korkmaz Ahmet Seçkin,ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL
Event
INTERNATIONAL ARTUKLU CONGRESS ON MEDICINE, NURSING, MIDWIFERY, AND HEALTH SCIENCES
Language
Türkçe
Scope
Uluslararası
Scoring Breakdown
Base Score:2.50
Final Score:1.93
Applied Multipliers
3. in author order
(x0.70)
Türkçe
(x1.00)
Uluslararası
(x1.10)
Calculation
2.50
× 0.70
× 1.00
× 1.10
= 1.93
Calculated: 13.08.2026 02:03
Activity
Diz Osteoartrit’li Hastalarda Egzersize Uyum ve Hasta Memnuniyetinin Değerlendirilmesi
Criterion: Other Papers
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN,BAĞLAN YENTÜR SONGÜL
Event
10. FIRAT ROMATOLOJİ SEMPOZYUMU
Language
Türkçe
Scope
Ulusal
Scoring Breakdown
Base Score:2.50
Final Score:1.60
Applied Multipliers
2. in author order
(x0.80)
Türkçe
(x1.00)
Ulusal
(x0.80)
Calculation
2.50
× 0.80
× 1.00
× 0.80
= 1.60
Calculated: 13.08.2026 02:03
Activity
Lomber Disk Hernisi Olan Hastalarda Farklı Egzersiz Tiplerinin Kas Kalınlığı, Ağrı ve Özürlülük Üzerine Etkilerinin Karşılaştırılması
Criterion: Other Papers
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN, BAĞLAN YENTÜR SONGÜL
Event
14th International Medicine and Heath Sciences Researches Congress
Language
Türkçe
Scope
Uluslararası
Scoring Breakdown
Base Score:2.50
Final Score:2.20
Applied Multipliers
2. in author order
(x0.80)
Türkçe
(x1.00)
Uluslararası
(x1.10)
Calculation
2.50
× 0.80
× 1.00
× 1.10
= 2.20
Calculated: 13.08.2026 02:03
Activity
Fibromiyalji Sendromlu Hastalarda D Vitamini Düzeyi Ağrı ve Ağrı Katastrofizasyonu ile İlişkisi
Criterion: Other Papers
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN, BAĞLAN YENTÜR SONGÜL
Event
13th International Hippocrates Congress on Medical and Health Sciences
Language
Türkçe
Scope
Uluslararası
Scoring Breakdown
Base Score:2.50
Final Score:2.20
Applied Multipliers
2. in author order
(x0.80)
Türkçe
(x1.00)
Uluslararası
(x1.10)
Calculation
2.50
× 0.80
× 1.00
× 1.10
= 2.20
Calculated: 13.08.2026 02:03
Activity
CROSSFİT SPORCULARINDA KOR ENDURANS, PERFORMANS VE FONKSİYONEL AKTİVİTELERİN ARAŞTIRILMASI
Criterion: Other Papers
Summary Info
Authors
ELBASTI MUHAMMET ŞAHİN, BAĞLAN YENTÜR SONGÜL
Event
1. BİLSEL INTERNATIONAL HARPUT SCIENTIFIC RESEARCHES CONGRESS
Language
Türkçe
Scope
Uluslararası
Scoring Breakdown
Base Score:2.50
Final Score:2.20
Applied Multipliers
2. in author order
(x0.80)
Türkçe
(x1.00)
Uluslararası
(x1.10)
Calculation
2.50
× 0.80
× 1.00
× 1.10
= 2.20
Calculated: 13.08.2026 02:03
Activity
THE EFFECT OF VITAMIN D DEFICIENCY ON EXERCISE CAPACITY, RESPIRATORY MUSCLE STRENGTH, AND PERIPHERAL MUSCLE STRENGTH IN PATIENTS WITH CONNECTIVE TISSUE DISEASES
15. ULUSAL EL VE ÜST EKSTREMİTE CERRAHİSİ KONGRESİ - 4. ULUSAL EL REHABİLİTASYONU KONGRESİ
Language
Türkçe
Scope
Ulusal
Scoring Breakdown
Base Score:2.50
Final Score:1.00
Applied Multipliers
5. in author order
(x0.50)
Türkçe
(x1.00)
Ulusal
(x0.80)
Calculation
2.50
× 0.50
× 1.00
× 0.80
= 1.00
Calculated: 13.08.2026 02:03
Activity
Sistemik lupus eritematozuslu hastalarda kinezyofobi ile ağrı,fiziksel aktivite, depresyon, yorgunluk, yaşam kalitesi ve hastalık aktivitesi arasındaki ilişki
21st Federation of European Societies for Surgery of the Hand's Congress
Language
İngilizce
Scope
Uluslararası
Scoring Breakdown
Base Score:4.00
Final Score:3.87
Applied Multipliers
2. in author order
(x0.80)
İngilizce
(x1.10)
Uluslararası
(x1.10)
Calculation
4.00
× 0.80
× 1.10
× 1.10
= 3.87
Calculated: 13.08.2026 02:03
Activity
The validity and reliability of Michigan Hand Questionnaire in patients with tendon injury
Criterion: Other Papers
Summary Info
Authors
OSKAY DERAN,TUNA ZEYNEP,BAĞLAN YENTÜR SONGÜL,METE OĞUZHAN,GÖKKURT AHMET
Event
21st Federation of European Societies for Surgery of the Hand's Congress
Language
İngilizce
Scope
Uluslararası
Scoring Breakdown
Base Score:4.00
Final Score:3.39
Applied Multipliers
3. in author order
(x0.70)
İngilizce
(x1.10)
Uluslararası
(x1.10)
Calculation
4.00
× 0.70
× 1.10
× 1.10
= 3.39
Calculated: 13.08.2026 02:03
Activity
The Relationship Between Kinesiophobia and Pain Physical Activiy Depression Fatigue Disease Activity and Quality of Life in Patients with Systemic Lupus Erythematosus
3. in author order
(x0.70)
Türkçe
(x1.00)
Ulusal
(x0.80)
Calculation
4.00
× 0.70
× 1.00
× 0.80
= 2.24
Calculated: 13.08.2026 02:03
Activity
IS THERE A DIFFERENCE BETWEEN PHYSIOTHERAPY AND REHABILITATION AND SOFTWAREENGINEERING STUDENTS IN TERMS OF THE EFFECT OF PHYSICAL ACTIVITY ATTITUDE ONPHYSICAL ACTIVITY
Criterion: Other Papers
Summary Info
Authors
Taşar Öznur,BAĞLAN YENTÜR SONGÜL
Event
10th ISPEC INTERNATIONAL CONFERENCE ONMEDICAL & HEALTH SCIENCES
Language
Türkçe
Scope
Ulusal
Scoring Breakdown
Base Score:2.50
Final Score:1.60
Applied Multipliers
2. in author order
(x0.80)
Türkçe
(x1.00)
Ulusal
(x0.80)
Calculation
2.50
× 0.80
× 1.00
× 0.80
= 1.60
Calculated: 13.08.2026 02:03
Activity
Ankilozan Spondilit li hastaların hastalık bilgi düzeylerinin belirlenmesi