LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 825

Search options

  1. Article ; Online: The predictive effect of basic military training and general health status on sleep quality.

    Güler, Melek / Öztürk, Emsal / Yanar, Nazlı

    International maritime health

    2023  Volume 74, Issue 3, Page(s) 180–185

    Abstract: Background: Military universities and academies affiliated with the law enforcement provide education for students who are physically and psychologically suitable for this field, unlike other university educations. This education can affect general ... ...

    Abstract Background: Military universities and academies affiliated with the law enforcement provide education for students who are physically and psychologically suitable for this field, unlike other university educations. This education can affect general health because it requires discipline and special effort both practically and theoretically. In this context, the aim of our study is to examine the general health status of military students in terms of some variables.
    Materials and methods: One hundred twenty-two male students studying at the Gendarmerie and Coast Guard Academy participated in the study. The general health status of the participants was determined by the SF-12 Brief Health Questionnaire, and their sleep quality was determined by the Pittsburg Sleep Quality Index (PSQI). In the analysis of the data, Spearmans' rho correlation, binomial logistic regression and scatter diagram analysis were used for independent groups. All analyses were performed in the Jamovi 2.3.21.0 analysis programme according to 95% confidence interval and 0.05 significance level.
    Results: Increased physical and mental health scores of the participants, not smoking, and having a good diet were found to increase the likelihood of improving sleep quality. It was concluded that initial active duty for training, alcohol use, and being in a school team did not predict the likelihood of improving sleep quality.
    Conclusions: As a result, it may be recommended that military students should have good general health, pay attention to nutrition and avoid smoking to improve low sleep quality.
    MeSH term(s) Humans ; Male ; Sleep ; Sleep Quality ; Military Personnel ; Surveys and Questionnaires ; Universities ; Health Status
    Language English
    Publishing date 2023-10-01
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 2032821-7
    ISSN 2081-3252 ; 1641-9251
    ISSN (online) 2081-3252
    ISSN 1641-9251
    DOI 10.5603/imh.95536
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Optimal digital filter selection for remote photoplethysmography (rPPG) signal conditioning.

    Guler, Saygun / Golparvar, Ata / Ozturk, Ozberk / Dogan, Huseyin / Kaya Yapici, Murat

    Biomedical physics & engineering express

    2023  Volume 9, Issue 2

    Abstract: Remote photoplethysmography (rPPG) using camera-based imaging has shown excellent potential recently in vital signs monitoring due to its contactless nature. However, the optimum filter selection for pre-processing rPPG data in signal conditioning is ... ...

    Abstract Remote photoplethysmography (rPPG) using camera-based imaging has shown excellent potential recently in vital signs monitoring due to its contactless nature. However, the optimum filter selection for pre-processing rPPG data in signal conditioning is still not straightforward. The best algorithm selection improves the signal-to-noise ratio (SNR) and therefore improves the accuracy of the recognition and classification of vital signs. We recorded more than 300 temporal rPPG signals where the noise was not motion-induced. Then, we investigated the best digital filter in pre-processing temporal rPPG data and compared the performances of 10 filters with 10 orders each (i.e., a total of 100 filters). The performances are assessed using a signal quality metric on three levels. The quality of the raw signals was classified under three categories; Q1 being the best and Q3 being the worst. The results are presented in SNR scores, which show that the Chebyshev II orders of 2nd, 4th, and 6th perform the best for denoising rPPG signals.
    MeSH term(s) Photoplethysmography/methods ; Signal-To-Noise Ratio ; Algorithms ; Motion
    Language English
    Publishing date 2023-01-11
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2057-1976
    ISSN (online) 2057-1976
    DOI 10.1088/2057-1976/acaf8a
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Assessment of Global DNA Methylation in SH-SY5Y Cells Exposed to the Neonicotinoid Insecticides Imidacloprid and Thiamethoxam.

    Guler, Zeynep Rana / Yilmaz, Umran / Uzunosmanoglu, Kubra / Ozturk, Busra / Abudayyak, Mahmoud / Ozden, Sibel

    International journal of toxicology

    2023  Volume 42, Issue 4, Page(s) 345–351

    Abstract: Neonicotinoid insecticides, known for their selectivity and low mammalian toxicity, have been widely used in recent years as alternatives to organophosphate insecticides. Although neonicotinoids are generally considered to be safe, data show that they ... ...

    Abstract Neonicotinoid insecticides, known for their selectivity and low mammalian toxicity, have been widely used in recent years as alternatives to organophosphate insecticides. Although neonicotinoids are generally considered to be safe, data show that they can cause harmful effects on human and environmental health. Due to the lack of information on their mechanism of toxicity, the effects of imidacloprid and thiamethoxam on DNA methylation as the most used marker for epigenetic effects were investigated in human neuroblastoma (SH-SY5Y) cells. The cells were exposed to imidacloprid and thiamethoxam in concentrations of 100, 200, and 500 μM for 24 hours, then global DNA methylation and expression of genes involved in global DNA methylation (
    MeSH term(s) Animals ; Humans ; Thiamethoxam/toxicity ; Insecticides/toxicity ; DNA Methylation ; Oxazines/toxicity ; Thiazoles/toxicity ; Guanidines/toxicity ; Neuroblastoma ; Neonicotinoids/toxicity ; Nitro Compounds/toxicity ; Mammals
    Chemical Substances Thiamethoxam (747IC8B487) ; Insecticides ; imidacloprid (3BN7M937V8) ; Oxazines ; Thiazoles ; Guanidines ; Neonicotinoids ; Nitro Compounds
    Language English
    Publishing date 2023-02-01
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1379845-5
    ISSN 1092-874X ; 1091-5818
    ISSN (online) 1092-874X
    ISSN 1091-5818
    DOI 10.1177/10915818231154470
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Comprehensive analysis of lateral nasal wall anatomy to optimize the osteotomy in different skeletal patterns.

    Eberliköse, Hacer / Güler, Arif Yigit / Akbarihamed, Raha / Öztürk, Caner / Karasu, Hakan Alpay

    Surgical and radiologic anatomy : SRA

    2024  Volume 46, Issue 3, Page(s) 327–332

    Abstract: Purpose: Variations in nasal wall anatomy are crucial in patients with dentofacial deformities undergoing Le Fort I osteotomy. These structural variations heighten the potential for complications during surgical procedures. Hence, the study focused on ... ...

    Abstract Purpose: Variations in nasal wall anatomy are crucial in patients with dentofacial deformities undergoing Le Fort I osteotomy. These structural variations heighten the potential for complications during surgical procedures. Hence, the study focused on evaluating the differences in the lateral nasal wall anatomy across different skeletal Classes.
    Methods: This study evaluated 86 patients aged 18-43 years with different skeletal Classes. In the axial images acquired from coronal sections, two angulations and the linear distances of the lateral nasal wall were measured in Class I, II, and III patients. The measurement between the piriform opening and the most anterior point of the greater palatine foramen was evaluated in three parts regarding the osteotomy line. Differences between the skeletal patterns were analyzed using an independent sample t-test and Mann-Whitney U test with a significance level of 0.05. The intra-class correlation coefficient was calculated for inter-observer and intra-observer agreement.
    Results: There was a statistically significant difference between Class I and Class II subjects regarding the anterior lateral nasal wall (p = 0.011) and anterior nasal thickness (a) (0.004). There was a significant difference between Class I and Class III patients regarding anterior nasal thickness (a) (p < 0.001) and total lateral nasal wall length (p < 0.001).
    Conclusion: For instance, the measurements of Class III and Class II patients were relatively different from those of the Class I patients. Therefore, preoperative Cone-Beam Computed Tomographic analysis should be performed for each patient prior to Le Fort I osteotomy to ensure that the procedure is performed safely.
    MeSH term(s) Humans ; Maxilla/diagnostic imaging ; Maxilla/surgery ; Osteotomy, Le Fort/methods ; Nasal Cavity ; Nose ; Cone-Beam Computed Tomography/methods
    Language English
    Publishing date 2024-03-04
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 632839-8
    ISSN 1279-8517 ; 0930-312X ; 0930-1038
    ISSN (online) 1279-8517
    ISSN 0930-312X ; 0930-1038
    DOI 10.1007/s00276-023-03292-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Coping strategies among women exposed to Gender-Based violence in Turkey.

    Zonp, Zeynep / Ozturk, Burcu / Guler, Ayse / Arnault, Denise Saint

    Journal of advanced nursing

    2022  Volume 78, Issue 12, Page(s) 4236–4245

    Abstract: Aim: To understand coping strategies used by women experiencing gender-based violence and living in Turkey. Coping is a cognitive and behavioural strategy that individuals develop to manage stress, generally categorized as emotion-focused or problem- ... ...

    Abstract Aim: To understand coping strategies used by women experiencing gender-based violence and living in Turkey. Coping is a cognitive and behavioural strategy that individuals develop to manage stress, generally categorized as emotion-focused or problem-focused coping. Women exposed to gender-based violence develop various coping strategies to manage stress and its adverse mental and physical health effects.
    Design: Qualitative study using the phenomenological approach.
    Methods: Data were collected in Turkey by using the snowball technique (n = 17) between September 2019 and September 2020. The Clinical Ethnographic Narrative Interview is the source of the qualitative data for this study. Data were coded manually and utilized the RADAR technique.
    Results: Seventeen women aged 25-40 were included in this analysis. Women stated that they were exposed to more than one type of gender-based violence according to their lived experiences. Analysis of the nature of coping strategies revealed five main themes. The themes were self-competence, separation from others/isolation, getting professional help, having faith and social support.
    Conclusion: Breaking the silence and listening to gender-based violence experiences from survivors' voices contribute significantly to literature. There was a dearth of research on Turkish women's gender-based violence survivors; the research intended to address that gap. The participants highlighted that they would like to receive more attention and felt relief in sharing their experiences.
    Impact: The Clinical Ethnographic Narrative Interview is a great tool to explore narratives of gender-based violence and coping skills of women. The study explored coping strategies of Turkish women's gender-based violence survivors. The participants indicated their emotion-focused and problem-solving coping strategies and shared their stories. This study will enhance efforts to concentrate on gender-based violence among Turkish women and inspire other researchers, practitioners and policymakers to change and provide more opportunities for the benefit and well-being of these women.
    MeSH term(s) Female ; Humans ; Intimate Partner Violence/psychology ; Gender-Based Violence ; Turkey ; Adaptation, Psychological ; Qualitative Research
    Language English
    Publishing date 2022-10-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 197634-5
    ISSN 1365-2648 ; 0309-2402
    ISSN (online) 1365-2648
    ISSN 0309-2402
    DOI 10.1111/jan.15448
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: A survey on relationship between Gendarmerie Coast Guard Academy (GCGA) students' physical activity and COVID-19 infection.

    Güler, Melek / Yanar, Nazlı / Öztürk, Emsal

    International maritime health

    2022  Volume 72, Issue 4, Page(s) 259–267

    Abstract: Background: The primary aim of this study was to reveal whether the Gendarmerie Coast Guard Academy (GCGA) students caught and went through the coronavirus disease 2019 (COVID-19) according to their physical activity levels during the COVID-19 pandemic ... ...

    Abstract Background: The primary aim of this study was to reveal whether the Gendarmerie Coast Guard Academy (GCGA) students caught and went through the coronavirus disease 2019 (COVID-19) according to their physical activity levels during the COVID-19 pandemic process.
    Materials and methods: The research group of the study consisted of 332 volunteer male students studying at the GCGA. International Physical Activity Questionnaire-Short Form (IPAQ-SF) and personal information form were used as data collection tools in the study. The data obtained from the questionnaires were analysed in the Jamovi 1.8.2 statistical software programme with a 95% confidence interval and a 5% margin of error. In the analysis of data, non-parametric correlation test was used for pairwise comparisons and Multinomial and Binomial Logistic Regression test was used for comparisons of subcategories.
    Results: According to students' body mass index scores, 73.49% of the students were of normal weight. The results of the analysis, showed that 29.82% of the GCGA students had COVID-19, and 70.18% of them did not have COVID-19. It was determined that 91.92% of those who had COVID-19 had mild illness and recovered at home. According to the metabolic equivalence classification of students, a negative and significant relationship between students' physical activity levels (inactive < minimally active < very active) and the risk of getting the positive results for COVID-19 (yes < no) and the severity of COVID-19 (in intensive care < in the hospital < mildly at home) was found.
    Conclusions: It could be said that increasing the physical activity level of students can reduce the possibility of having COVID-19 and also increase the probability of mild illness not requiring hospitalisation in those with positive COVID-19 test result.
    Language English
    Publishing date 2022-01-13
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 2032821-7
    ISSN 2081-3252 ; 1641-9251
    ISSN (online) 2081-3252
    ISSN 1641-9251
    DOI 10.5603/IMH.2021.0050
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: Comparison of weight-based versus standard dosing of tranexamic acid for blood loss and transfusion amount in knee arthroplasty without tourniquet.

    Guler, Olcay / Çarkcı, Engin / Çerci, Mehmet Halis / Gümüşsuyu, Gürkan / Öztürk, Çağatay

    Acta orthopaedica Belgica

    2022  Volume 88, Issue 1, Page(s) 53–60

    Abstract: The aim of the study is to compare weight-based versus standard dosing of intravenous (IV) tranexamic acid (TXA) for blood loss and transfusion amount in total knee arthroplasty (TKA) without a tourniquet. A total of 99 patients were divided into two ... ...

    Abstract The aim of the study is to compare weight-based versus standard dosing of intravenous (IV) tranexamic acid (TXA) for blood loss and transfusion amount in total knee arthroplasty (TKA) without a tourniquet. A total of 99 patients were divided into two groups: Group 1 (standard): 1 g of IV TXA 30 min before skin incision, and 1 g at postoperative 30 min and 3 h. Group 2 (weight-based): 10 mg/kg IV TXA 30 min before the skin incision, and 10 mg/kg at postoperative 30 min, and 3 h. Hemoglobin levels, before, and 1, and 2 days after the operation, postoperative amount of decrease in hemoglobin levels, and amount of erythrocyte transfusion were recorded. Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Knee Society Score (KSS) were applied in the evaluation of TKA results preoperatively, and at 1., 3., 6., and 12. months, postoperatively. In both study groups, hemoglobin levels in male patients dropped significantly more deeply than female patients. Also, in both study groups, hemo- globin levels were significantly lower in patients with comorbid illnesses. A statistically significant difference was not detected between both groups in terms of pre- and postoperative WOMAC scores, KSS knee scores, and KSS function scores. Our study showed that standard and weight-based dosing of IV TXA treatments were similar in efficacy and safety. Both treatments reduce blood loss and the need for transfusion. Also, there was no significant difference in terms of reliability between two groups.
    MeSH term(s) Antifibrinolytic Agents ; Arthroplasty, Replacement, Knee/adverse effects ; Arthroplasty, Replacement, Knee/methods ; Blood Loss, Surgical/prevention & control ; Female ; Hemoglobins ; Humans ; Male ; Postoperative Hemorrhage/prevention & control ; Reproducibility of Results ; Tourniquets ; Tranexamic Acid
    Chemical Substances Antifibrinolytic Agents ; Hemoglobins ; Tranexamic Acid (6T84R30KC1)
    Language English
    Publishing date 2022-05-05
    Publishing country Belgium
    Document type Journal Article
    ZDB-ID 210367-9
    ISSN 0001-6462 ; 1784-407X
    ISSN 0001-6462 ; 1784-407X
    DOI 10.52628/88.1.08
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: MIREyA: a computational approach to detect miRNA-directed gene activation.

    Elizarova, Anna / Ozturk, Mumin / Guler, Reto / Medvedeva, Yulia A

    F1000Research

    2021  Volume 10, Page(s) 249

    Abstract: Emerging studies demonstrate the ability of microRNAs (miRNAs) to activate genes via different mechanisms. Specifically, miRNAs may trigger an enhancer promoting chromatin remodelling in the enhancer region, thus activating the enhancer and its target ... ...

    Abstract Emerging studies demonstrate the ability of microRNAs (miRNAs) to activate genes via different mechanisms. Specifically, miRNAs may trigger an enhancer promoting chromatin remodelling in the enhancer region, thus activating the enhancer and its target genes. Here we present MIREyA, a pipeline developed to predict such miRNA-gene-enhancer trios based on an expression dataset which obviates the need to write custom scripts. We applied our pipeline to primary murine macrophages infected by
    MeSH term(s) Animals ; Macrophages ; Mice ; MicroRNAs/genetics ; Mycobacterium tuberculosis/genetics ; Regulatory Sequences, Nucleic Acid ; Transcriptional Activation
    Chemical Substances MIRN222 microRNA, mouse ; MicroRNAs
    Language English
    Publishing date 2021-03-29
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2699932-8
    ISSN 2046-1402 ; 2046-1402
    ISSN (online) 2046-1402
    ISSN 2046-1402
    DOI 10.12688/f1000research.28142.2
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Effects of illuminance intensity on the green channel of remote photoplethysmography (rPPG) signals.

    Guler, Saygun / Ozturk, Ozberk / Golparvar, Ata / Dogan, Huseyin / Yapici, Murat Kaya

    Physical and engineering sciences in medicine

    2022  

    Abstract: Point-of-care remote photoplethysmography (rPPG) devices that utilize low-cost RGB cameras have drawn considerable attention due to their convenience in contactless and non-invasive vital signs monitoring. In rPPG, sufficient lighting conditions are ... ...

    Abstract Point-of-care remote photoplethysmography (rPPG) devices that utilize low-cost RGB cameras have drawn considerable attention due to their convenience in contactless and non-invasive vital signs monitoring. In rPPG, sufficient lighting conditions are essential for obtaining accurate diagnostics by observing the complete signal morphology. The effects of illuminance intensity and light source settings play a significant role in rPPG assessment quality, and it was previously observed that different lighting schemes result in different signal quality and morphology. This study presents a quantitative empirical analysis where the quality and morphology of rPPG signals were assessed under different light settings. Participants' faces were exposed to the white LED spotlight, first when the sources were installed directly behind the video camera, and then when the sources were installed in a cross-polarized scheme. Hence, the effect of specular reflectance on rPPG signals could be observed in an increasing projection. The signal qualities were analyzed in each intensity level using a signal-to-noise (SNR) ratio metric. In 3 of 7 participants, placing the video camera on the same level as the light source led to signal quality loss of up to 3 dB for the range 30-60 Lux. In addition, two fundamental morphological features were analyzed, and the derivative-related feature was found to be increasing with illuminance intensity in 6 of 7 participants.
    Language English
    Publishing date 2022-08-29
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2662-4737
    ISSN (online) 2662-4737
    DOI 10.1007/s13246-022-01175-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: Single-arm diagnostic electrocardiography with printed graphene on wearable textiles.

    Ozturk, Ozberk / Golparvar, Ata / Acar, Gizem / Guler, Saygun / Yapici, Murat Kaya

    Sensors and actuators. A, Physical

    2022  Volume 349, Page(s) 114058

    Abstract: Stimulated by the COVID-19 outbreak, the global healthcare industry better acknowledges the necessity of innovating novel methods for remote healthcare monitoring and treating patients outside clinics. Here we report the development of two different ... ...

    Abstract Stimulated by the COVID-19 outbreak, the global healthcare industry better acknowledges the necessity of innovating novel methods for remote healthcare monitoring and treating patients outside clinics. Here we report the development of two different types of graphene textile electrodes differentiated by the employed fabrication techniques (i.e., dip-coating and spray printing) and successful demonstration of ergonomic and truly wearable, single-arm diagnostic electrocardiography (SADE) using only 3 electrodes positioned on only 1 arm. The performance of the printed graphene e-textile wearable systems were benchmarked against the "gold standard" silver/silver chloride (Ag/AgCl) "wet" electrodes; achieving excellent correlation up to ∼ 96% and ∼ 98% in ECG recordings (15 s duration) acquired with graphene textiles fabricated by dip-coating and spray printing techniques, respectively. In addition, we successfully implemented automatic detection of heartrate of 8 volunteers (mean value: 74.4 bpm) during 5 min of static and dynamic daily activities and benchmarked their recordings with a standard fingertip photoplethysmography (PPG) device. Heart rate variability (HRV) was calculated, and the root means successive square difference (rMMSD) metric was 30 ms during 5 min of recording. Other cardiac parameters such as R-R interval, QRS complex duration, S-T segment duration, and T-wave duration were also detected and compared to typical chest ECG values.
    Language English
    Publishing date 2022-11-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1026063-8
    ISSN 0924-4247
    ISSN 0924-4247
    DOI 10.1016/j.sna.2022.114058
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top