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ObjectivesHormone replacement therapy (HRT) frozen embryo transfer (FET) cycles are common in assisted reproductive techniques. As the corpus luteum is absent in these cycles, luteal phase support is provided by administering progesterone (P4) through transvaginal, parenteral, or oral routes. Low serum levels of P4 (below 9-10 ng/mL) on the day before embryo transfer (ET) have been associated with unfavorable cycle outcomes. The aim of this study is to investigate whether individualizing luteal support through rescue protocols in patients with low serum P4 levels improves pregnancy outcomes in HRT-FET cycles.Material and methodThis retrospective, single-center cohort analysis includes 1257 cycles involving 942 patients undergoing HRT-FET. Starting in 2019, we have assessed P4 levels before ET day and adjusted MVP doses when P4 levels were 0.05).ConclusionIndividualizing luteal phase support based on serum P4 levels on the day of ET in FET cycles with HRT may enhance pregnancy outcomes by either doubling the vaginal dose or increasing the SC dose during MVP plus SC administration. The implemented rescue protocol allowed patients with low progesterone levels to achieve pregnancy outcomes similar to those with higher progesterone levels.

The new approach in positive psychology is growing rich with the acceptance of life in all aspects and with views on the optimal use of human potential; it is being shaped by a new perspective that can be accepted as a full explanation of not only positive emotion but also of sources and motives of positive emotion, and respect for human. One of the predictors of positive emotion is personality traits. Within this scope, this research aimed at exploring the relationship between personality and eudaimonic well-being. A total of 316 undergraduates participated in the study. The data were collected online through the Questionnaire for Eudaimonic Well-Being and The Big Five Inventory. The findings showed that stability involving agreeableness, conscientiousness, and neuroticism significantly affected undergraduates’ eudaimonic well-being. However, plasticity involving extraversion and openness had no significant effect.

The purpose of this study is to determine the key factor affecting the behaviour of using tourism mobile apps. Contrary to previous studies, the present paper highlights the key factor by evaluating the perceived advantages and technological self-efficacy together. So as to evaluate overall measurement quality and test the hypothesized relationships, a two-step approach was applied. In the first step, confirmatory factor analysis (CFA) was employed to test the validity of the measurement scales. Then, the dataset was analysed using the PLS-SEM method to test the proposed hypotheses. Data were collected from 213 adult participants through an online survey. The study revealed that time-saving is a key determinant of tourism mobile apps usage with the highest beta coefficient (0.335, p

This article examines public performances of official national day celebrations in Ankara during the early period of the Republic. As studying only one actor within a single conceptual framework of national day celebrations would be insufficient to depict the complex nature of social practices, this study argues that national day celebrations inherently incorporate simultaneously and reciprocally performed layers within the public sphere. This study considers the celebration spaces, which are the physical theater of events, as being a part of a network of material and spiritual tools that are utilized to improve the celebration performance and increase the enjoyment of the audience, while also considering the socio-spatial codes that control the masses and the celebration of mise-en-scene. This article uses three intertwined themes: the mobilization of the masses; the promotion of technological development and technical exhibition; and the circulation of the founding images and narratives, to introduce and discuss public performance in Ankara. The study concludes by suggesting that the interaction of these themes with each other explains the consent culture, nation-building strategies, and performative forms of publicity, that occurred during national day performances of the early period of the Republic of Turkey.

PurposeTo evaluate the impact of serum LH levels prior to progestin administration on the outcomes of programmed frozen-thawed embryo transfer (FET) cycles.MethodsRetrospective cohort study was conducted to compare the treatment outcomes between four groups based on the 25 percentiles of serum LH levels before progestin administration in 596 cycles of 518 patients undergoing artificial endometrial preparation protocols for FET. Primary outcome measures were ongoing and live birth rates. Secondary outcome measures were the pregnancy rates, clinical pregnancy rates, and pregnancy loss rates.ResultsThe trends in clinical pregnancy (CPR) and live birth rates (LBR) increased from the first to the fourth quartile (Q1 to Q4) of serum LH levels prior to progestin administration (37,0% to 48,3%, p = 0.042, and 22.6% to 39.5%, respectively, p = 0.003). Pregnancy loss rates (PLR) were higher in group Q1, although the difference was not statistically significant. Based on a multivariate logistic regression analysis, a low serum LH level before progestin initiation was found to be the most significant predictor associated with a negative effect on live birth (OR: 0,421, 95% CI 0,178 – 0,994, p=0,048). The day of estrogen initiation was significantly correlated with serum LH levels and quartiles of serum LH levels before progestin administration (r=0,200, p=0,015 and r=0,215, p=0,009, respectively).ConclusionThe serum LH level prior to progestin administration significantly affects pregnancy and live birth rates in patients undergoing an artificial endometrial preparation protocol for FET. LH monitoring should be incorporated into the follow-up, in addition to assessing endometrial thickness and morphology in artificial FET cycles.

Abstract Aerogel‐based biomaterials are increasingly being considered for biomedical applications due to their unique properties such as high porosity, hierarchical porous network, and large specific pore surface area. Depending on the pore size of the aerogel, biological effects such as cell adhesion, fluid absorption, oxygen permeability, and metabolite exchange can be altered. Based on the diverse potential of aerogels in biomedical applications, this paper provides a comprehensive review of fabrication processes including sol‐gel, aging, drying, and self‐assembly along with the materials that can be used to form aerogels. In addition to the technology utilizing aerogel itself, it also provides insight into the applicability of aerogel based on additive manufacturing technology. To this end, how microfluidic‐based technologies and 3D printing can be combined with aerogel‐based materials for biomedical applications is discussed. Furthermore, previously reported examples of aerogels for regenerative medicine and biomedical applications are thoroughly reviewed. A wide range of applications with aerogels including wound healing, drug delivery, tissue engineering, and diagnostics are demonstrated. Finally, the prospects for aerogel‐based biomedical applications are presented. The understanding of the fabrication, modification, and applicability of aerogels through this study is expected to shed light on the biomedical utilization of aerogels.

Aim: The most common metabolic disorder during pregnancy is gestational diabetes mellitus (GDM). GDM can occur in anywhere between 1.7 and 11.6 percent of people. In hypothyroidism, the rates of glucose oxidation and glycogen synthesis are reduced, and the peripheral tissues' consumption of glucose is also delayed. Patients with subclinical and overt hypothyroidism develop insulin resistance because insulin is unable to adequately maintain the muscles' use of glucose. According to the literature, hypothyroidism is linked to 6–15 percent of GDM pregnancies. Additionally, the chance of having GDM is 4.3 times higher in pregnant women who have hypothyroidism. This study aimed to reveal the relationship between first-trimester thyroid function tests and GDM. Material and Method: This retrospective cohort study was conducted between May 2021 and May 2022. 100 pregnant patients diagnosed with GDM and 500 healthy controls were included in the study. Using a 75 g glucose challenge test, GDM was identified. The trimester-specific recognized normal limits were used to evaluate the TSH and fT4 readings. Results: There was a statistically significant difference in terms of SCH between patients with and without GDM (p=0.04). TSH's performance in predicting GDM was evaluated using AUC and ROC (AUC=0.586 and p=0.006). To forecast GDM, the TSH level cut-off value was discovered to be 1.58. The AUC was found to be 0.586 (0.521-0.652). Furthermore, the selectivity is 58% and the sensitivity is 41% Conclusion: There are many studies in the literature investigating thyroid functions and the development of gestational diabetes mellitus. Our study also found a correlation between the diagnosis of subclinical hypothyroidism in the first trimester and GDM. The study adds to the literature the importance of being cautious and vigilant in terms of the development of gestational diabetes mellitus based on the results of the thyroid function test in the first trimester.

Aims: Gestational diabetes mellitus (GDM) is an inflammatory disorder. GDM raises the risk of pregnancy complications. Early recognition of GDM is critical to prevent complications. Systemic Immune-Inflammation Index (SII) is an index that shows the inflammatory response, we hypothesized that it might be associated to GDM. The purpose of this study was to determine the relationship between GDM and SII, as well as whether SII in the first trimester can predict GDM. Material and Method: This retrospective cohort study was conducted between January 2021 and January 2022. 100 pregnant women were included in the study. The study group included 50 pregnant women who had been diagnosed with GDM. The control group consisted of the remaining 50 pregnant women who had not been diagnosed with GDM. SII values were calculated from the hemogram values of the patients at the first visit in the first trimester. Results: There was a statistically significant difference between GDM and control groups in terms of SII, platelet, neutrophil, fT3, apgar 1 min and apgar 5 min measurements (p

Cognitive flexibility is a term encompassing three basic domains and meaning the ability to adjust individuals’ cognition depending on varying circumstances. Problematic internet use may be related to psychological structures. In addition, studies have shown that the internet is both a stress-making tool and a safe haven in which individuals can seek to cope with stress. Taken all together, the purpose of the study was to observe the mediating role of coping with stress in the relationship between problematic internet use and cognitive flexibility. Chosen by convenient sampling, the participants were 706 volunteered secondary school pupils from Turkey. All data were collected with Cognitive Flexibility Scale, Strategies for Coping with Stress Scale and Young Internet Addiction Test-Short Form. As the study results revealed, problematic internet use had a negative significant effect on cognitive flexibility without the inclusion of strategies for coping with stress. Accordingly, the prediction effect of problematic internet use on cognitive flexibility became non-significant after the inclusion of strategies for coping with stress.

Oryantalizmin teşekkül ettiği ya da daha doğru bir ifadeyle teşekkül etmesine büyük oranda katkısı bulunması hasebiyle Fransa’da ve Fransız oryantalistlerin telif etmiş olduğu eserlerdeki Hz. Muhammed (s.a.v.) algısı ve bu algının bir sonucu olarak peygamber imajının tarihsel boyutunu ortaya koymak, günümüzdeki ön yargı ve ithamların kaynağını bir nebze olsun tespit etmek önem arz etmektedir. Fransa’nın Batı dünyasının önemli bir kültür ve entelektüel merkezi olmasından, burada ortaya konulan yaklaşımların Batı’nın diğer yerlerinde de bir şekilde etkili olduğundan mütevellit böyle bir merkezde Hz. Muhammed (s.a.v.) üzerine eserler telif eden ve bu eylemlerini etik ve akademik temeller üzerine inşa etme çabasını göstermiş olan Maurice Gaudefroy-Demombynes, Régis Blachère ve Maxime Rodinson adlı müellifleri çalışmasına konu etmiş olan Dr. İsmail Metin, Prof. Dr. Seyfettin Erşahin danışmanlığında hazırlamış olduğu “Fransız Oryantalistlerin Siyer Literatüründe Hz. Muhammed İmajı: Maurice Gaudefroy-Demombynes, Régis Blachère ve Maxime Rodinson Örneği” isimli doktora tezinin yeniden gözden geçirmiş, düzenlemiş ve geliştirmiş hâlde, Fransız oryantalizminin başlıca isimlerinden Gaudefroy-Demombynes, Blachère ve Rodinson’un Hz. Muhammed (s.a.v.) ile ilgili görüş ve düşünceleri karşılıklı olarak ele almakta, olaylara yaklaşım tarzlarını tespit etmeye çalışmaktadır. Bu doğrultuda mevzubahis kitap literatürde edindiği yer ve doldurduğu boşluk açısından değerlendirilmiştir.

Abstract Patents are intellectual properties that reflect innovative activities of companies and organizations. The literature is rich with the studies that analyze the citations among the patents and the collaboration relations among companies that own the patents. However, the adversarial relations between the patent owners are not as well investigated. One proxy to model such relations is the patent opposition, which is a legal activity in which a company challenges the validity of a patent. Characterizing the patent oppositions, collaborations, and the interplay between them can help better understand the companies’ business strategies. Temporality matters in this context as the order and frequency of oppositions and collaborations characterize their interplay. In this study, we construct a two-layer temporal network to model the patent oppositions and collaborations among the companies. We utilize temporal motifs to analyze the oppositions and collaborations from structural and temporal perspectives. We first characterize the frequent motifs in patent oppositions and investigate how often the companies of different sizes attack other companies. We show that large companies tend to engage in opposition with multiple companies. Then we analyze the temporal interplay between collaborations and oppositions. We find that two adversarial companies are more likely to collaborate in the future than two collaborating companies oppose each other in the future.

The aim of this study was to investigate the mediator role of moral disengagement in the relationship between gender roles and dating violence. Participants were 425 university students [310 (72.9%) female, 115 (27.1%) male, Mage = 20.68 years, SD = 2.21] who completed questionnaires package involving the Gender Roles Attitudes Scale, the Attitudes toward Dating Violence Scales, and the Moral Disengagement Scale. The data were analyzed using structural equation modeling. A bootstrapping analysis was conducted in order to determine any indirect effects. The results showed that gender roles predicted moral disengagement and dating violence negatively, and that moral disengagement predicted dating violence positively. It was further found that the structural equation model that proposed that gender roles had a direct and an indirect effect through moral disengagement on dating violence was confirmed. The results of the study were discussed in the light of relevant literature, and suggestions for future studies were made.

With advancements in technology, proliferation of online counseling services has recently become observable. The purpose of the current study was to reveal what people know about face-to-face and online counseling and to determine the direction of their preferences for both. The participants of the current study, which is of a qualitative case study, were 25 people, ranging in age from 17 to 49, of different professions (soldiers, security officers, secretaries, drivers, officers, housekeepers, housewives, high school-university students and academicians). While 4 of the participants reported experiencing face-to-face counseling services, 21 participants did not report receiving one. Besides, none of the participants reported receiving online counseling services. The time that the participants want to allocate for online counseling services was found to be more than the time that they want to allocate for face-to-face counseling. The top two methods that 17 participants preferred, being of the opinion that they would have a warm ambiance while receiving counseling, were video conference (7), and chatting (5). Finally, it was also observed that most of the participants (20) preferred face-to-face counseling services due to the existence of active participation and non-verbal reactions such as gestures and facial expressions, and very few of them (5) preferred online counseling services because of anonymity and availability. Results in general showed that individuals were eager to receive online counseling and find it more useful in terms of finance and availability.

Objective: Intrauterine insemination (IUI) is frequently used to treat patients with ovulation disorders, cervical factor, mild male infertility and unexplained infertility. The aim of this study was to investigate the impact of modified speculum application on the success of IUI in patients with unexplained infertility. Materials and methods: This prospective randomized study reviewed 219 women who had undergone controlled ovarian hyperstimulation (COH)-IUI treatment. In the modified speculum application group (109 patients with 124 cycles), the screw of the vaginal speculum was loosened after passing the internal os with catheter and the vaginal speculum remained in this position to ensure closure of the cervix during the procedure. In the conventional speculum application group (110 patients with 132 cycles), the screw of the vaginal speculum was not loosened to close the lips of cervix after passing the internal os with the catheter and the vaginal speculum was removed after withdrawal of the insemination catheter. The primary outcome was live birth rate. Results: The modified and conventional speculum application groups had statistically similar demographic and clinical characteristics. There were no significant differences between the study and the control groups in terms of the clinical pregnancy rate per cycle and per patient (24.1% vs 18.9% and 26.6% vs 22.7%, respectively), as well as the live birth rate per cycle and per patient (19.3% vs 15.1% and 22% vs 18.1% respectively). Conclusion: Applying gentle mechanical pressure on the portio vaginalis of the cervix using a vaginal speculum during IUI does not improve pregnancy and live birth rates in patients with unexplained infertility. Keywords: Intrauterine insemination, Controlled ovarian hyperstimulation, Speculum, Technique

Abstract Strong, stretchable, and durable biomaterials with shape memory properties can be useful in different biomedical devices, tissue engineering, and soft robotics. However, it is challenging to combine these features. Semi‐crystalline polyvinyl alcohol (PVA) has been used to make hydrogels by conventional methods such as freeze–thaw and chemical crosslinking, but it is formidable to produce strong materials with adjustable properties. Herein, a method to induce crystallinity and produce physically crosslinked PVA hydrogels via applying high‐concentration sodium hydroxide into dense PVA polymer is introduced. Such a strategy enables the production of physically crosslinked PVA biomaterial with high mechanical properties, low water content, resistance to injury, and shape memory properties. It is also found that the developed PVA hydrogel can recover 90% of plastic deformation due to extension upon supplying water, providing a strong contraction force sufficiently to lift objects 1100 times more than their weight. Cytocompatibility, antifouling property, hemocompatibility, and biocompatibility are also demonstrated in vitro and in vivo. The fabrication methods of PVA‐based catheters, injectable electronics, and microfluidic devices are demonstrated. This gelation approach enables both layer‐by‐layer and 3D printing fabrications.

Three-dimensional (3D) bioprinting has demonstrated great potential for the fabrication of biomimetic human tissues and complex graft materials. This technology utilizes bioinks composed of cellular elements placed within a biomaterial. Mesenchymal stromal cells (MSCs) are an attractive option for cell selection in 3D bioprinting. MSCs can be isolated from a variety of tissues, can pose vast proliferative capacity and can differentiate to multiple committed cell types. Despite their promising properties, the use of MSCs has been associated with several drawbacks. These concerns are related to the ex vivo manipulation throughout the process of 3D bioprinting. The herein manuscript aims to present the current evidence surrounding these events and propose ways to minimize the risks to the patients following widespread expansion of 3D bioprinting in the medical field.

Objectives: This study aimed to evaluate the serum concentrations of PAPP-A (pregnancy associated placental protein-A), a biomarker which is associated with cardiovascular disease, in patients with polycystic ovary syndrome (PCOS). Materials and Methods: A total of 62 women with PCOS, and 68 age and body mass index (BMI) matched controls were eligible for the study. Hirsutism scores, hormonal and metabolic profile as well as PAPP-A levels were assessed in each subject. Results: Women with PCOS and controls yielded similar median serum levels of PAPP-A (1.7 ng/ml versus 1.8 ng/ml, respectively, p = 0.328). However, when patients were compared based on BMI; subgroup analyses found that among women with BMI

Objective: The aim of the present study was to investigate effects of resveratrol (RSV) over ovarian hyperstimulation syndrome (OHSS) in rat model. Materials and Methods: 24 female Wistar rats (22 days old) were divided into four groups. Group 1 (control group; n = 6) received 0.1 ml intraperitoneal (IP) saline from days 22–26; group 2 (mild-stimulated group; n = 6) received 10 IU pregnant mare serum gonadotropin (PMSG) on day 24 and 10 IU of hCG 48 h later (day 26); group 3 (OHSS group; n = 6) was given 10 IU of PMSG for 4 consecutive days from day 22 and 30 IU hCG on the fifth day to induce OHSS; group 4 (OHSS + RSV group; n = 6) was treated the same as group 3, but received 60 mg/kg RSV 2 h before PMSG injection for 4 consecutive days and 2 h before the hCG injection on the fifth day. Results: Weight gain was highest in the OHSS group. Ovarian weights were lower in the treatment group than OHSS group. Peritoneal fluid VEGF levels were lower for RSV group compared to group 2 and 3. Total VEGF immunoreactivity was higher in OHSS group than group 1, 2 and 4. Conclusion: These results indicate that RSV is beneficial for prevention of OHSS by reducing the increases in body and ovarian weight and VEGF activity. These effects may be mediated by anti-inflammatory, anti-oxidant and anti-angiogenic capacity of RSV.

The primary objective of this study was to assess the novel fixation method of a frameless copper-releasing intrauterine device inserted following placental delivery during cesarean section and analyze its impact in reducing device displacement and expulsion during and after uterine involution. We hypothesized that the dual-anchoring technique could reduce the risk of intrauterine device displacement and expulsion during and after the uterine involution. The study was conducted at the Gazi University Medicine Faculty Hospital in Ankara, Turkey. Twenty-one pregnant women were enrolled. Insertion was performed following placental removal. To confirm the proper placement and good retention of the device, the distance between the fundal serosa (S) and device anchor knot (A) was measured (S–A) during follow-ups, by ultrasound. There were significant differences in the S–A, as observed by ultrasound at discharge and at 6 weeks post-delivery, which is consistent with the tissue contractions associated with uterine involution. Notwithstanding the uterine involution, no device displacements or expulsions occurred, which indicated a good retention of the frameless device. This innovative retention method of the frameless intrauterine device ensures a well-tolerated, long-term contraception, allowing for immediate contraception and proper pregnancy spacing for cesarean scar healing, and overcomes the issue of expulsion encountered with conventional intrauterine systems.

Background Our objective was to evaluate the effectiveness of clomiphene citrate (CC) vs. letrozole (L) plus human menopausal gonadotropin (hMG) in gonadotropin releasing hormone (GnRH) antagonist protocol in poor prognosis women with previous failed ovarian stimulation undergoing intracytoplasmic sperm injection (ICSI). Materials and Methods This retrospective cohort study included cycles with CC and L plus hMG/GnRH antagonist protocols of 32 poor responders who had failed to have ideal follicles to be retrieved during oocyte pick-up (OPU) or embryo transfer (ET) at least for 2 previous in vitro fertilization (IVF) cycles with microdose flare protocol or GnRH antagonist protocol from January 2006 to December 2009. Main outcome measures were implantation, clinical pregnancy and live birth rates per cycle. Duration of stimulation, mean gonadotropin dose used, endometrial thickness, number of mature follicles, serum estradiol (E2) and progesterone (P) levels on the day of human chorionic gonadotropin (hCG) administration, number of retrieved oocytes and fertilization rates were also evaluated. Results A total number of 42 cycles of 32 severe poor responders were evaluated. Total gonadotropin consumption was significantly lower (1491 ± 873 vs. 2808 ± 1581 IU, P=0.005) and mean E2 level on the day of hCG injection were significantly higher in CC group than L group (443.3 ± 255.2 vs. 255.4 ± 285.2 pg/mL, P=0.03). ET, overall pregnancy and live birth rates per cycle were significantly higher in CC than L protocol (27.2 vs. 15%, 13.6 vs. 0% and 4.5 vs. 0%, respectively, P < 0.05). Conclusion Severe poor responders who had previously failed to respond to microdose or GnRH antagonist protocols may benefit from CC plus hMG/GnRH antagonist protocol despite high cancellation rate.

Background: The aim of this study was to determine the relationship between marital violence and distress level among women with a diagnosis of infertility. Materials and Methods: In this prospective randomized study, a total of 180 patients were included in the study. Amongst these, pertubation of the uterine cavity was carried out in 79 patients prior to insemination. One patient in the pertubation group was later excluded because insemination could not be performed due to cycle cancellation. Results: There were no significant differences in demographic characteristics between the study and control groups. When the pregnancy rates of both groups were evaluated, 14(17.8%) patients in the study group achieved pregancy. Three (3.8%) had a biochemical pregnancy, 1(1.3%) miscarried and 10(12.7%) had live births. In the control group, a total of 24(23.8%) pregnancies were achieved, amongst which one (1%) had a biochemical pregnancy, 3(3%) miscarried and 20(19.8%) resulted in live births. There was no significant difference between groups in terms of total pregnancy and live birth rates (p > 0.05). There was a 21% total pregnancy loss rate. There was no significant difference between the control and study groups in terms of pregnancy loss rates (p > 0.05). Conclusion: This study on a homogenous group of unexplained infertile patients determined that the addition of pertubation to a controlled ovarian hyperstimulation plus intrauterine insemination (COH+IUI) treatment protocol did not affect pregnancy rates (Registration Number: NCT01999959).

We report optical photometric and polarimetric observations of the blazar OJ 287 gathered during 2016/17. The high level of activity, noticed after the General Relativity Centenary flare, is argued to be part of the follow-up flares that exhibited high levels of polarization and originated in the primary black hole jet. We propose that the follow-up flares were induced as a result of accretion disk perturbations, travelling from the site of impact towards the primary SMBH. The timings inferred from our observations allowed us to estimate the propagation speed of these perturbations. Additionally, we make predictions for the future brightness of OJ 287.

Centrifugal spinning is an increasingly popular and viable method to produce fibers of different compositions. However, there are still aspects to investigate and improve in the centrifugal spinning process, such as optimizing the fiber yield and obtaining defect-free fiber morphology. To address this gap, the effects of the collectors on the fiber yield and their morphology were investigated in this work. An aqueous solution with 18 wt% of PVP and two needles (18G and 21G) with different diameters and three different spinning speeds (5000, 7000, and 9000 RPM) were used to explore a set of fiber collectors with various collector spacing (1, 3, 6, 12, and 18 cm distance between the collectors' bars). The results of the experiments showed that fiber collectors affect the yield of the process and the fiber morphology to some (non-negligible) extent. Denser collectors enabled higher yield, thus reducing the waste, and positively affecting the beading of fibers. The knowledge obtained in this work about the influence of collectors on the centrifugal processing of basic polymers can be with an advantage applied to the processing of different polymers and needles used within the centrifugal spinning process. [ABSTRACT FROM AUTHOR]