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Article: Towards Environment-Aware Fall Risk Assessment: Classifying Walking Surface Conditions Using IMU-Based Gait Data and Deep Learning.

Yıldız, Abdulnasır

2023 Volume 13, Issue 10

Abstract: Fall risk assessment (FRA) helps clinicians make decisions about the best preventative measures to lower the risk of falls by identifying the different risks that are specific to an individual. With the development of wearable technologies such as ... ...

Abstract	Fall risk assessment (FRA) helps clinicians make decisions about the best preventative measures to lower the risk of falls by identifying the different risks that are specific to an individual. With the development of wearable technologies such as inertial measurement units (IMUs), several free-living FRA methods based on fall predictors derived from IMU-based data have been introduced. The performance of such methods could be improved by increasing awareness of the individuals' walking environment. This study aims to introduce and analyze a 25-layer convolutional neural network model for classifying nine walking surface conditions using IMU-based gait data, providing a basis for environment-aware FRAs. A database containing data collected from thirty participants who wore six IMU sensors while walking on nine surface conditions was employed. A systematic analysis was conducted to determine the effects of gait signals (acceleration, magnetic field, and rate of turn), sensor placement, and signal segment size on the method's performance. Accuracies of 0.935 and 0.969 were achieved using a single and dual sensor, respectively, reaching an accuracy of 0.971 in the best-case scenario with optimal settings. The findings and analysis can help to develop more reliable and interpretable fall predictors, eventually leading to environment-aware FRA methods.
Language	English
Publishing date	2023-10-08
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2651993-8
ISSN	2076-3425
ISSN	2076-3425
DOI	10.3390/brainsci13101428
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Laparoscopic transabdominal preperitoneal and totally extraperitoneal in inguinal hernia surgery: comparison of intraoperative and postoperative early complications of two techniques.

Yildiz, Abdullah

Journal of minimally invasive surgery

2022 Volume 25, Issue 1, Page(s) 18–23

Abstract: Purpose: Totally extraperitoneal (TEP) and transabdominal preperitoneal (TAPP) are laparoscopic techniques frequently used in inguinal hernia surgeries. There are very few studies directly comparing the outcomes of TEP and TAPP. The present study ... ...

Abstract	Purpose: Totally extraperitoneal (TEP) and transabdominal preperitoneal (TAPP) are laparoscopic techniques frequently used in inguinal hernia surgeries. There are very few studies directly comparing the outcomes of TEP and TAPP. The present study compared both techniques' technical aspects, intraoperative and postoperative early complications. Methods: In this study, 108 patients diagnosed with inguinal hernia underwent laparoscopic surgery between May 2016 and December 2020. Seventy six of these patients (70.4%) underwent TEP, and 32 (29.6%) underwent TAPP. This study was retrospective. However, the data were registered prospectively (including video recordings). Results: No significant difference was found between the groups regarding age, sex, body mass index, American Society of Anesthesiologist physical status classification, and duration of hospitalization. Although the TEP group had a higher overall complication rate than TAPP, the difference between the two groups was not significant (TEP, 9.2% vs. TAPP, 3.1%, Conclusion: In our study, conversion and intraoperative early postoperative complications were more prevalent in TEP than TAPP. On the other hand, no significant difference was determined between the results of the two techniques. It has been found that TAPP is as safe as TEP in inguinal hernia surgery; however, the superiority of one method over the other was not observed in this study.
Language	English
Publishing date	2022-05-16
Publishing country	Korea (South)
Document type	Journal Article
ISSN	2234-5248
ISSN (online)	2234-5248
DOI	10.7602/jmis.2022.25.1.18
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Article: Lichtenstein and Total Extraperitoneal Techniques in Inguinal Hernia Surgery: A Comparison of the Intraoperative and Early Postoperative Complications Between the Two Approaches.

Yıldız, Abdullah

Cureus

2022 Volume 14, Issue 8, Page(s) e28020

Abstract: Background and objective The Lichtenstein technique (LSt) and total extraperitoneal technique (TEPt) are the most frequently performed surgical procedures for inguinal hernia (IH). This study aimed to compare LSt and TEPt in terms of intraoperative and ... ...

Abstract	Background and objective The Lichtenstein technique (LSt) and total extraperitoneal technique (TEPt) are the most frequently performed surgical procedures for inguinal hernia (IH). This study aimed to compare LSt and TEPt in terms of intraoperative and postoperative complications as well as recurrence rates. Methods This retrospective study involved patients hospitalized for IH repair. The study included a total of 262 patients (LSt group: n=125; TEPt group: n=137). Results The follow-up period of the patients ranged between 16 and 30 months (mean: 22.3 months). While intraoperative complications were more commonly reported in the TEPt group, postoperative complications were more common in the LSt group (2.9% vs. 1.6%). Postoperative bleeding/hematoma developed in three (2.4%) patients in the LSt and three (2.2%) in the TEPt group. One of the patients in the LSt group was reoperated due to persistent bleeding. Two patients in the LSt and two in the TEPt group were reoperated for postoperative recurrence (1.6% vs. 2.4%). One patient was reoperated due to chronic persistent pain. Seroma was aspirated in three (2.4%) patients in the LSt and two (1.5%) in the TEPt group. Conclusion This study revealed no significant difference between TEPt and LSt groups regarding intraoperative and postoperative complications. We propose that both TEPt and LSt could be safely performed in cases of primary and complex IH by selecting the appropriate method based on the hernia type and patient and with sufficient surgical experience.
Language	English
Publishing date	2022-08-15
Publishing country	United States
Document type	Journal Article
ZDB-ID	2747273-5
ISSN	2168-8184
ISSN	2168-8184
DOI	10.7759/cureus.28020
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Article ; Online: Dynamic folding and accessibility of telomeric overhang.

Yildiz, Ahmet

Proceedings of the National Academy of Sciences of the United States of America

2022 Volume 119, Issue 38, Page(s) e2211219119

MeSH term(s)	Fluorescence Resonance Energy Transfer ; G-Quadruplexes ; Humans ; Single Molecule Imaging ; Telomere/chemistry ; Telomere Homeostasis ; Telomere-Binding Proteins/chemistry
Chemical Substances	Telomere-Binding Proteins
Language	English
Publishing date	2022-09-07
Publishing country	United States
Document type	Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, N.I.H., Extramural ; Comment
ZDB-ID	209104-5
ISSN	1091-6490 ; 0027-8424
ISSN (online)	1091-6490
ISSN	0027-8424
DOI	10.1073/pnas.2211219119
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Article ; Online: UV photodetectors based on W-doped ZnO thin films.

Jalal, R / Ozel, K / Atilgan, A / Yildiz, A

Nanotechnology

2024 Volume 35, Issue 26

Abstract: W-doped ZnO thin films deposited on Si substrates with (100) orientation by sol-gel spin coating method at temperature 500 °C. W/Zn atomic ratio varies from 0% to 4%. Then, the UV detection performance analysis ... ...

Abstract	W-doped ZnO thin films deposited on Si substrates with (100) orientation by sol-gel spin coating method at temperature 500 °C. W/Zn atomic ratio varies from 0% to 4%. Then, the UV detection performance analysis of
Language	English
Publishing date	2024-04-09
Publishing country	England
Document type	Journal Article
ZDB-ID	1362365-5
ISSN	1361-6528 ; 0957-4484
ISSN (online)	1361-6528
ISSN	0957-4484
DOI	10.1088/1361-6528/ad373b
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Article ; Online: Partial primary closure in sacrococcygeal pilonidal sinus: Modified with suture technique.

Yildiz, Abdullah

Asian journal of surgery

2021 Volume 45, Issue 1, Page(s) 381–385

Abstract: Aim and background: The primary purpose of pilonidal sinus treatment is to minimize complications, accelerate wound healing, and minimize recurrence. However, invasive and minimally invasive methods are being developed to reduce these problems. Early ... ...

Abstract	Aim and background: The primary purpose of pilonidal sinus treatment is to minimize complications, accelerate wound healing, and minimize recurrence. However, invasive and minimally invasive methods are being developed to reduce these problems. Early and late postoperative complications remain significant problems in pilonidal surgery. This study aimed to contribute to this issue in surgery by comparing the results of the Karydakis flap (KF) technique and those of the partial primary closure (PPC) technique, to which we applied suture modification. Methods: A total of 96 patients diagnosed with pilonidal sinus disease (PSD) were randomly assigned to two groups. Apply the partial primary closure in 46 patients and the Karydakis technique in 50. Results: In comparison to the Karydakis technique, the partial primary closure (PPC) group's hospitalization stay was shorter, although the difference was not significant. Healing time was also longer in uncomplicated cases (p = 0.200 and 0.064, respectively). Abscesses and hematomas were not observed with partial primary closure, but the total complication rate was similar to that of the Karydakis technique. Surgical site infections were often seen in the PPC group (21.7% vs. 10%). In contrast, healing time for complicated cases was found to be significantly shorter in the PPC technique (p < 0.05). Conclusion: Postoperative abscess, hematoma, and seroma are the most common causes of total wound dehiscence, and delay in wound healing in off-midline techniques. We recommend the PPC technique with suture modification as an alternative to off-midline techniques in clean and chronically infected cases, other than cellulitis, abscess, and purulent discharge cases. However, we primarily recommend off-midline techniques in clean or asymptomatic cases.
MeSH term(s)	Humans ; Neoplasm Recurrence, Local ; Pilonidal Sinus/surgery ; Recurrence ; Sacrococcygeal Region ; Surgical Flaps ; Suture Techniques
Language	English
Publishing date	2021-07-21
Publishing country	China
Document type	Journal Article ; Randomized Controlled Trial
ZDB-ID	1068461-x
ISSN	0219-3108 ; 1015-9584
ISSN (online)	0219-3108
ISSN	1015-9584
DOI	10.1016/j.asjsur.2021.06.029
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Article ; Online: The Role of Speedy/RINGO Protein in Breast Cancer as a Future Biomarker.

Tanriverdi, Ozgur / Yildiz, Aysegul

Cancer diagnosis & prognosis

2024 Volume 4, Issue 3, Page(s) 209–213

Abstract: Background/aim: Cyclin-dependent kinases (CDKs) are proteins that require the binding of regulatory subunits called cyclins and play a key role in cell cycle progression and activation. CDKs play a key role in carcinogenesis of many solid malignancies, ... ...

Abstract	Background/aim: Cyclin-dependent kinases (CDKs) are proteins that require the binding of regulatory subunits called cyclins and play a key role in cell cycle progression and activation. CDKs play a key role in carcinogenesis of many solid malignancies, and inhibition of these proteins has produced anti-cancer effects demonstrated in preclinical studies. This narrative review was conducted to develop a hypothetical approach to determine whether Speedy/RINGO, a protein associated with CDK2, could be a possible predictive factor in breast cancer patients treated with a CDK4/6 inhibitor. Materials and methods: A literature search was conducted in PubMed, Web of Science, Medline, and Google Scholars search engines to match the following words: "Speedy/RINGO" or "Spy1" and "CDKs" or "Cyclin-dependent kinases (CDKs)" and "CDK4/6 inhibitors" and "Regulation" and "Molecular" and "Breast cancer" and "Carcinogenesis". Only articles investigating the relationship between the Speedy/RINGO protein and CDKs at the molecular level were included. Literature information was compiled by trying to establish a relationship with our hypothesis question. Results: Speedy/RINGO is a tightly regulated proto-oncogenic mammalian protein playing important roles in the somatic cell cycle. Studies have emphasized that although it does not have amino acid sequence homology with cyclins, it can activate CDK2. In addition, results showing molecular compensation of CDK4/6 inhibition through CDK2 activation, also showed that CDK2 can predict drug resistance. Another important finding was that overexpressed Speedy/RINGO, during CDK4/6 inhibitor treatment, could strongly activate CDK2, resulting in a negative response to treatment. Conclusion: Although many predictive factors have been investigated to indicate response to CDK4/6 inhibitors or determine drug resistance, a consensus biomarker has yet to be established. In light of the information obtained from our review, it can be concluded that the Speedy/RINGO protein may have an important role as a predictive biomarker in terms of response to treatment, continuity of treatment and drug resistance in patients treated with CDK4/6 inhibitors.
Language	English
Publishing date	2024-05-03
Publishing country	Greece
Document type	Journal Article ; Review
ISSN	2732-7787
ISSN (online)	2732-7787
DOI	10.21873/cdp.10310
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Article: The effect of utilitarian motivations in online consumption behavior

Yildiz, A.

Journal of Critical Reviews

Abstract: Online shopping has been a method in which consumers shop intensively, especially in the Covid-19 process There are two main motivation motives in shaping the shopping behavior of consumers The first is hedonic motivations and the other is utilitarian ... ...

Abstract	Online shopping has been a method in which consumers shop intensively, especially in the Covid-19 process There are two main motivation motives in shaping the shopping behavior of consumers The first is hedonic motivations and the other is utilitarian motives In this study, it was investigated whether motivational impulses that direct consumers to online shopping vary according to their effect levels and demographic variables For this purpose in Turkey online (online) was obtained as a poll carried out and 448 valid As a result of the analyzes, it was observed that consumers participated in the proposals that they offer the most product variety and different payment opportunities In age, profession and economic status assessment options;It was determined that there was no statistically significant difference between the averages of the utilitarian motivation dimensions According to gender;convenience, adaptability and payment services;in terms of the level of education, the availability of information and payment services;In terms of monthly income level, there was a statistically significant difference in desire for control, lack of social interaction and privacy dimensions © 2020 by Advance Scientific Research
Keywords	covid19
Publisher	WHO
Document type	Article
Note	WHO #Covidence: #833249
Database	COVID19

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Article: Incarcerated Appendix Epiploica in Inguinal Hernia Sac: Treatment with Laparoscopic TAPP Approach-Report of a Rare Case.

Yildiz, Abdullah

Case reports in surgery

2020 Volume 2020, Page(s) 4178523

Abstract: Appendix epiploica (AE) in an incarcerated inguinal hernia sac is very rare. We herein report the case of a 57-year-old man admitted to the emergency department with complaints of nausea, swelling, and pain in the left inguinal area. He was diagnosed ... ...

Abstract	Appendix epiploica (AE) in an incarcerated inguinal hernia sac is very rare. We herein report the case of a 57-year-old man admitted to the emergency department with complaints of nausea, swelling, and pain in the left inguinal area. He was diagnosed with left incarcerated inguinal hernia and treated laparoscopically with transabdominal preperitoneal (TAPP) mesh hernioplasty. During the operation, AE, lodged in the direct hernia sac, was seen to originate from the sigmoid colon. The narrow internal inguinal ring was incised at the 2 o'clock position using a monopolar hook, and the hypertrophic AE was reduced to the abdomen and resected. The patient was discharged uneventfully on the second postoperative day.
Language	English
Publishing date	2020-02-21
Publishing country	United States
Document type	Case Reports
ZDB-ID	2657697-1
ISSN	2090-6919 ; 2090-6900
ISSN (online)	2090-6919
ISSN	2090-6900
DOI	10.1155/2020/4178523
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Article: The comparison of the intraocular lens power calculation formulas in long eyes.

Yildiz, Aydin

JPMA. The Journal of the Pakistan Medical Association

2020 Volume 70, Issue 7, Page(s) 1173–1176

Abstract: Objective: To investigate the accurate intraocular lens power formula in eyes with axial length over 26mm by using optical biometry.: Methods: The retrospective case series was conducted at Medicana International Avcilar Hospital, Istanbul, Turkey ... ...

Abstract	Objective: To investigate the accurate intraocular lens power formula in eyes with axial length over 26mm by using optical biometry. Methods: The retrospective case series was conducted at Medicana International Avcilar Hospital, Istanbul, Turkey from 2016 to 2018, and comprised data related to years between 2014 and 2018. Optical low-coherence reflectometry had been used in measurements. The calculation methods were included Hill-radial basis function, Sanders-Retzlaff-Kraff-Theoretical, Hoffer Q, Barrett Universal II, Olsen, Haigis and Holladay-2. The spherical equivalent values that were obtained with automated refractometer at the first postoperative month were recorded. Mean absolute error for each formula was estimated. SPSS 16 was used for data analysis. Results: There were 56 eyes of as many patients with a mean axial length of 26.70±0.88mm. The postoperative numerical error was within ±0.50 diopters in 46(82%) patients, and between the -0.50 and -1.00 diopters in 10(18%). The mean absolute error values were significantly lower in Haigis, Sanders-Retzlaff-Kraff-Theoretical, HofferQ and Holladay-2 formulas compared to the Barrett, Hill, and Olsen formulas (p<0.05). There was no statistically significant intra-group difference for Haigis, Sanders-Retzlaff-Kraff-Theoretical, Hoffer Q, and Holladay-2 formulas (p>0.05). Conclusions: In long eyes with an axial length over 26mm, Haigis, Sanders-Retzlaff-Kraff-Theoretical, Hoffer Q and Holladay-2 formulas yielded better postoperative refractive outcomes compared to Hill-radial basis function, Barrett Universal IIand Olsen formulas. The Haigis formula had the lowest refractive numerical error.
MeSH term(s)	Axial Length, Eye ; Biometry ; Humans ; Lens Implantation, Intraocular ; Lenses, Intraocular ; Optics and Photonics ; Refraction, Ocular ; Retrospective Studies ; Turkey ; Visual Acuity
Language	English
Publishing date	2020-08-06
Publishing country	Pakistan
Document type	Journal Article
ZDB-ID	603873-6
ISSN	0030-9982
ISSN	0030-9982
DOI	10.5455/JPMA.15406
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