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Article ; Online: Livedo Reticularis in Association with Fingolimod: A Case Report.

Afacan Yıldırım, Elif / Adışen, Esra

2024 Volume 69, Issue 1, Page(s) 97–99

Language	English
Publishing date	2024-02-27
Publishing country	India
Document type	Journal Article
ZDB-ID	416069-1
ISSN	1998-3611 ; 0019-5154
ISSN (online)	1998-3611
ISSN	0019-5154
DOI	10.4103/ijd.ijd_800_23
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Article ; Online: A NEW METRIC SYSTEM FOR ASSESSMENT OF E-TRANSFORMATION

Gülgün Afacan / Ali Arifoğlu

International Journal of eBusiness and eGovernment Studies, Vol 7, Iss

2015 Volume 1

Abstract: A NEW METRIC SYSTEM FOR ASSESSMENT OF E-TRANSFORMATION ...

Abstract	A NEW METRIC SYSTEM FOR ASSESSMENT OF E-TRANSFORMATION
Keywords	Political science ; J ; Political institutions and public administration (General) ; JF20-2112 ; Social Sciences ; H ; Commerce ; HF1-6182
Language	English
Publishing date	2015-01-01T00:00:00Z
Publisher	Social Sciences Research Society
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: The concept of e-HRM, its evolution and effects on organizational outcomes

Findikli, Mine Afacan / Rofcanin, Yasin

Technological challenges and management : matching human and business needs , p. 35-50

2016 , Page(s) 35–50

Author's details	Mine Afacan Findikli and Yasin Rofcanin
Language	English
Publisher	CRC Press
Publishing place	Boca Raton
Document type	Article
ISBN	1-4822-6101-4 ; 978-1-4822-6101-1
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Article ; Online: Herpes Zoster Associated with Cutaneous Small-vessel Vasculitis: A Rare Case Report with Review of Literature.

Afacan, Elif / Öğüt, Betül / Erdem, Özlem / Adışen, Esra

Indian journal of dermatology

2023 Volume 67, Issue 5, Page(s) 626

Language	English
Publishing date	2023-01-30
Publishing country	India
Document type	Journal Article
ZDB-ID	416069-1
ISSN	1998-3611 ; 0019-5154
ISSN (online)	1998-3611
ISSN	0019-5154
DOI	10.4103/ijd.ijd_1001_21
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Article ; Online: The Clinical Characteristics of Patients With Pyoderma Gangrenosum in a Tertiary Referral Hospital: A Retrospective Cohort Study.

Afacan Yıldırım, Elif / Can Edek, Yusuf / Adısen, Esra

The international journal of lower extremity wounds

2023 , Page(s) 15347346231196957

Abstract: Since pyoderma gangrenosum (PG) is a rare neutrophilic dermatosis, epidemiological and clinical data on the disease are scarce. In this single-center retrospective study, we aim to evaluate the clinical characteristics, underlying systemic associations ... ...

Abstract	Since pyoderma gangrenosum (PG) is a rare neutrophilic dermatosis, epidemiological and clinical data on the disease are scarce. In this single-center retrospective study, we aim to evaluate the clinical characteristics, underlying systemic associations and treatment modalities in patients with PG in a university hospital between 2014 and 2022. It is known that PG most commonly affects the lower extremities, but extracutaneous involvement should also be kept in mind. PG is usually associated with various comorbidities that share a similar inflammatory pathogenesis with the disease. The prevalence of PG-related comorbidities varies in different studies, arthritis and solid organ malignancies were observed most frequently in the current study. Non-PG-related comorbidities including diabetes mellitus, hypertension and peripheral vascular disease can adversely affect wound healing and limit treatment options; therefore, a holistic approach to patients with PG is crucial. Consistent with literature, the mainstay of treatment for PG is systemic corticosteroids and cyclosporine. However, the implementation of biologic agents in treatment-resistant patients is an increasingly important issue in the literature. Antitumor necrosis factors (anti-TNFs) are the most commonly preferred biological therapies, and these agents seem to have paved the way for a paradigm shift in the treatment of PG. In the present study, a relatively high per cent of (23.3%) patients treated with anti-TNFs, most commonly infliximab (87.5%). Recurrence was observed in 46.7% of our patients in the follow-up period and the relapse rate was found to be higher in patients using multiple systemic agents compared to those using single agents (64.7% vs 23.1%,
Language	English
Publishing date	2023-09-12
Publishing country	United States
Document type	Journal Article
ZDB-ID	2171119-7
ISSN	1552-6941 ; 1534-7346
ISSN (online)	1552-6941
ISSN	1534-7346
DOI	10.1177/15347346231196957
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Article ; Online: Rapid motion estimation and correction using self-encoded FID navigators in 3D radial MRI.

Wallace, Tess E / Piccini, Davide / Kober, Tobias / Warfield, Simon K / Afacan, Onur

Magnetic resonance in medicine

2023 Volume 91, Issue 3, Page(s) 1057–1066

Abstract: Purpose: To develop a self-navigated motion compensation strategy for 3D radial MRI that can compensate for continuous head motion by measuring rigid body motion parameters with high temporal resolution from the central k-space acquisition point (self- ... ...

Abstract	Purpose: To develop a self-navigated motion compensation strategy for 3D radial MRI that can compensate for continuous head motion by measuring rigid body motion parameters with high temporal resolution from the central k-space acquisition point (self-encoded FID navigator) in each radial spoke. Methods: A forward model was created from low-resolution calibration data to simulate the effect of relative motion between the coil sensitivity profiles and the underlying object on the self-encoded FID navigator signal. Trajectory deviations were included in the model as low spatial-order field variations. Three volunteers were imaged at 3 T using a modified 3D gradient-echo sequence acquired with a Kooshball trajectory while performing abrupt and continuous head motion. Rigid body-motion parameters were estimated from the central k-space signal of each spoke using a least-squares fitting algorithm. The accuracy of self-navigated motion parameters was assessed relative to an established external tracking system. Quantitative image quality metrics were computed for images with and without retrospective correction using external and self-navigated motion measurements. Results: Self-encoded FID navigators achieved mean absolute errors of 0.69 ± 0.82 mm and 0.73 ± 0.87° relative to external tracking for maximum motion amplitudes of 12 mm and 10°. Retrospective correction of the 3D radial data resulted in substantially improved image quality for both abrupt and continuous motion paradigms, comparable to external tracking results. Conclusions: Accurate rigid body motion parameters can be rapidly obtained from self-encoded FID navigator signals in 3D radial MRI to continuously correct for head movements. This approach is suitable for robust neuroanatomical imaging in subjects that exhibit patterns of large and frequent motion.
MeSH term(s)	Humans ; Image Processing, Computer-Assisted/methods ; Imaging, Three-Dimensional/methods ; Retrospective Studies ; Magnetic Resonance Imaging/methods ; Motion ; Artifacts ; Brain
Language	English
Publishing date	2023-11-06
Publishing country	United States
Document type	Journal Article
ZDB-ID	605774-3
ISSN	1522-2594 ; 0740-3194
ISSN (online)	1522-2594
ISSN	0740-3194
DOI	10.1002/mrm.29899
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Article ; Online: The relationship between erythema nodosum and prognosis in systemic sarcoidosis: a retrospective cohort study.

Afacan Yıldırım, Elif / Aladağ Öztürk, Perihan / Adışen, Esra / Köktürk, Nurdan

Anais brasileiros de dermatologia

2022 Volume 97, Issue 5, Page(s) 606–611

Abstract: Background: Erythema Nodosum (EN) is the most common skin manifestation in sarcoidosis and has often been associated with a good prognosis.: Objectives: To compare the clinical characteristics and treatment-related features in patients with ... ...

Abstract	Background: Erythema Nodosum (EN) is the most common skin manifestation in sarcoidosis and has often been associated with a good prognosis. Objectives: To compare the clinical characteristics and treatment-related features in patients with sarcoidosis according to whether or not EN was seen as a presenting symptom at the time of diagnosis. Methods: A 20-year single-center retrospective study was performed. The following two groups were identified: one group with EN as one of the presenting symptoms at the time of diagnosis of sarcoidosis (EN group) and a second group without EN as a presenting symptom at diagnosis (non-EN group). The clinical characteristics and treatment modalities were collected from the medical records. Results: A total of 122 patients (31 in the EN group, 91 in the non-EN group) were included. Radiological stages of pulmonary disease were significantly lower in the EN group. Articular involvement was more common in the EN group (p = 0.001), whereas other systemic organ involvements (p = 0.025), especially neurological involvement (p = 0.036), were significantly more common in the non-EN group. In the EN group, a higher percentage of patients were managed without systemic therapy (71.0% vs. 54.9%) and spontaneous remission was more frequent (25.0% vs. 14.1%), however, this wasn't statistically significant. Study limitations: Retrospective design. Conclusions: The lower radiological stage of pulmonary sarcoidosis and lower frequency of systemic organ involvement in patients with EN augment the prognostic value of EN highlighted in the literature. However, this study couldn't confirm that the patients with EN would need less systemic therapy in the course of their disease.
MeSH term(s)	Erythema Nodosum ; Humans ; Prognosis ; Retrospective Studies ; Sarcoidosis ; Sarcoidosis, Pulmonary
Language	English
Publishing date	2022-07-07
Publishing country	Spain
Document type	Journal Article
ZDB-ID	433655-0
ISSN	1806-4841 ; 0365-0596
ISSN (online)	1806-4841
ISSN	0365-0596
DOI	10.1016/j.abd.2021.09.011
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Article ; Online: Evaluation of patients' post-operative results operated for hip fracture with computerized dynamic posturography: Proximal femoral nailing versus hip arthroplasty.

Taşkın, Ersin / Ozsahin, Mahmut Kursat / Afacan, Muhammed Yusuf / Acar, Melda / Kara, Eyyup / Şeker, Ali

Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES

2023 Volume 29, Issue 10, Page(s) 1175–1183

Abstract: Background: Proximal femoral nailing (PFN) and hip arthroplasty (HA) are the two most often utilized surgical procedures for treating hip fractures in older patients. The post-operative postural balance and functional outcomes of patients may be ... ...

Title translation	Kalça kırığı nedeni ile ameliyat edilmiş hastaların bilgisayarlı dinamik postürografi cihazı ile değerlendirilmesi: Proksimal femoral çivileme ile kalça artroplastisinin karşılaştırılması.
Abstract	Background: Proximal femoral nailing (PFN) and hip arthroplasty (HA) are the two most often utilized surgical procedures for treating hip fractures in older patients. The post-operative postural balance and functional outcomes of patients may be significantly influenced by the technical distinctions between PFN and HA. This will influence the surgeon's preferred course of therapy. To examine the functional outcomes of patients treated with PFN and HA following a hip fracture, this study used computerized dynamic posturography (CDP). The aim of that study was to evaluate how the two treatment modalities affected patients' post-operative balance, postural stability, and functional rehabilitation. Methods: A total of 26 patients who underwent proximal femoral surgery (15 patients PFN [58%] and 11 patients HA [42%]) due to hip fractures were evaluated at least 12 months postoperatively. They were tested by direct radiographs, hip joint examinations, Harris hip score (HHS), and CDP. Results: Twelve (46%) of 26 patients were male and 14 (54%) were female. The mean age of the participants in the study was 67.9±14.2 years. The mean follow-up period was 24 (12-44) months. The average Harris score of PFN group was 79.3 (46.8-100) points and HA group was 83.7 (61.9-99.9) points. There was no significant difference between the groups in terms of Harris Score (P=0.54). The average of the mixed value of the balance results obtained with CDP (the Composite score) for PFN group was 70.5 (56-79) points, and for HA group was 71.9 (56-83) points. There was no significant difference between the groups in terms of the Composite Score (P=0.47). Accordingly, 12 (80%) of the patients who underwent PFN had good results and 3 (20%) of them had bad results. Eight (72.7%) of those who underwent HA had good results and 3 (27.3%) had bad results. There was no statistically significant difference (P=0.66). Conclusion: Comparing the composite score for balance results and HHS results for rehabilitation with the data of the patients who underwent PFN and HA, there was no statistically significant difference between these two techniques in terms of postural stabil-ity and balance as a result of CDP examination.
MeSH term(s)	Humans ; Male ; Female ; Aged ; Middle Aged ; Aged, 80 and over ; Fracture Fixation, Intramedullary/methods ; Arthroplasty, Replacement, Hip ; Bone Nails ; Hip Fractures/surgery ; Urography ; Treatment Outcome
Language	English
Publishing date	2023-10-03
Publishing country	Turkey
Document type	Journal Article
ZDB-ID	2253739-9
ISSN	1307-7945 ; 1306-696X
ISSN (online)	1307-7945
ISSN	1306-696X
DOI	10.14744/tjtes.2023.24804
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Article ; Online: Can Covid-19 vaccines cause or exacerbate bullous pemphigoid? A report of seven cases from one center.

Afacan, Elif / Edek, Yusuf C / İlter, Nilsel / Gülekon, Ayla

International journal of dermatology

2022 Volume 61, Issue 5, Page(s) 626–627

MeSH term(s)	COVID-19/prevention & control ; COVID-19 Vaccines/adverse effects ; Humans ; Pemphigoid, Bullous/chemically induced ; Pemphigoid, Bullous/diagnosis
Chemical Substances	COVID-19 Vaccines
Language	English
Publishing date	2022-01-26
Publishing country	England
Document type	Case Reports ; Letter
ZDB-ID	412254-9
ISSN	1365-4632 ; 0011-9059 ; 1461-1244
ISSN (online)	1365-4632
ISSN	0011-9059 ; 1461-1244
DOI	10.1111/ijd.16086
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Article ; Online: Real-time shimming with FID navigators.

Wallace, Tess E / Kober, Tobias / Stockmann, Jason P / Polimeni, Jonathan R / Warfield, Simon K / Afacan, Onur

Magnetic resonance in medicine

2022 Volume 88, Issue 6, Page(s) 2548–2563

Abstract: Purpose: To implement a method for real-time field control using rapid FID navigator (FIDnav) measurements and evaluate the efficacy of the proposed approach for mitigating dynamic field perturbations and improving : Methods: FIDnavs were embedded in ...

Abstract	Purpose: To implement a method for real-time field control using rapid FID navigator (FIDnav) measurements and evaluate the efficacy of the proposed approach for mitigating dynamic field perturbations and improving Methods: FIDnavs were embedded in a gradient echo sequence and a subject-specific linear calibration model was generated on the scanner to facilitate rapid shim updates in response to measured FIDnav signals. To confirm the accuracy of FID-navigated field updates, phantom and volunteer scans were performed with online updates of the scanner B Results: Applying measured FIDnav shim updates successfully compensated for applied global and linear field offsets in phantoms and across all volunteers. FID-navigated real-time shimming led to a substantial reduction in field fluctuations and a consequent improvement in Conclusion: FIDnavs facilitate rapid measurement and application of field coefficients for slice-wise B
MeSH term(s)	Brain/diagnostic imaging ; Calibration ; Humans ; Image Processing, Computer-Assisted/methods ; Linear Models ; Magnetic Resonance Imaging/methods ; Phantoms, Imaging
Language	English
Publishing date	2022-09-12
Publishing country	United States
Document type	Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
ZDB-ID	605774-3
ISSN	1522-2594 ; 0740-3194
ISSN (online)	1522-2594
ISSN	0740-3194
DOI	10.1002/mrm.29421
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