Determination of short-term effects of wild fire on soil properties and nitrogen mineralization in Turkish pine (Pinus brutia ten.) in Turkey (the case of sariçiçek sub-district directorate)

Forest fires are one of the factors that play an important role in both global warming and nutrient accumulation in soils. The level of these effects varies according to the severity and intensity of the fire. This study was conducted to determine the one-year effects of fire on soil properties and nitrogen mineralization in Turkish Pine stands exposed to low-intensity surface fire that naturally occurred at the Sarıçiçek region the Vezirköprü district of Samsun province in 2014, in Turkey. To this end, six sampling areas were selected from both burned and unburned (control) areas in the sections. Soil samples were taken from a depth of 0-5 cm and 5-10 cm. Nitrogen mineralization was determined by the land incubation in 3 periods (April-July-October, 2014) on-site holding method. Among soil properties, texture, pH, organic matter, total nitrogen, bulk density and carbon (C) / nitrogen (N) ratio analyses were assessed. As a conclusion, it was observed that significant differences occurred in soil properties and nitrogen mineralization temporarily. Average nitrogen mineralization at a depth of 0-10 cm over the one-year period was found to be 23.56 kg /ha in the burned areas and 25.2 kg/ha in the control areas. As a result of the study, it was concluded that the fire was more effective, especially at a depth of 0-5 cm in regards to changing the soil properties. Nitrogen mineralization at a depth of 0-5 cm was greater in the burned areas compared to controls. It was determined that especially low-intensity fires were not effective toward the lower depth levels

Platelet to lymphocyte ratio in differentiation of benign and malignant thyroid nodules

Aim: Differentiation of thyroid nodules, either as benign or malignant, is a real diagnostic challenge. Inflammation has an important role in development of the malignancy. Therefore, inflammatory markers are associated with malignant thyroid nodules. Platelet /lymphocyte ratio (PLR) is also one of the novel inflammatory indices derived from hemogram tests. We hypothesized whether PLR was associated with malignant thyroid nodules. For this purpose, we compared PLR levels of the patients with benign thyroid nodules to the PLR of the subjects with malignant nodules. Methods: The subjects who visited outpatient internal medicine clinics of our institution with a diagnosis of thyroid nodule were enrolled to the present retrospective study. According to the examination of the fine needle aspiration cytology (FNAC) specimen of the nodules, patients grouped into benign or malignant nodule groups. PLR of groups were compared. Results: Median PLR values of the benign and malignant thyroid nodule groups were 106 (48-432) % and 119 (48-365) %, respectively (p=0.001). PLR value higher than 106% has 69% sensitivity and 51% specificity in detecting malignant nodules (AUC: 0.59, p=0.001, 95% CI: 0.54-0.65). PLR was positively correlated with TSH level (r=0.10, p=0.34). Conclusion: We suggest that elevated PLR could be an additional tool to differentiate malignant thyroid nodules from benign ones in supportive of sonography, scintigraphy and cytology

Anomalous Magnetic Ordering in PrBa₂Cu₄O₈ and CmBa₂Cu₃O₇

A review of temperature-dependent magnetization data for nonsuperconducting PrBa2Cu4O8 and CmBa2Cu3O7 suggests that the failure of each to superconduct is related to the presence of Pr and Cm on their respective Ba sites. This defect is manifested, in each case, by short c-axis lattice parameters and anomalous high-temperature magnetic ordering which has been incorrectly attributed to ordering of the entire magnetic sublattice. Instead, it is shown that the anomalous high-temperature ordering as seen in the magnetization data is consistent with the ordering of magnetic ions substituted on the Ba site

Could triglyceride to high density lipoprotein-cholesterol ratio predict hepatosteatosis?

Aim: The triglyceride / HDL cholesterol (TG/HDL-c) ratio is increased in a variety of diseases including, coronary heart disease and type 2 diabetes mellitus. However, its role in non-alcoholic hepatosteatosis is not well understood. In present study, we aimed to compare the TG/HDL-c levels of the patients with non-alcoholic hepatosteatosis to those of the healthy subjects. Methods: Medical data of the patients with non-alcoholic hepatosteatosis whom presented to the outpatient internal medicine clinics of our institution were retrospectively analyzed. Healthy subjects whom admissions to our clinics were due to check up were enrolled to the study as control group. TG/HDL-c of the groups compared. Results: TG/HDL-c level of the liver steatosis group (5 (2-22) %) was higher than the control group (2.7 (1-8) %), (p<0.001). TG/HDL-c was significantly and positively correlated with fasting blood glucose (r=0.31, p<0.001), C - reactive protein (r=0.25, p<0.001) and LDL-cholesterol (r=0.3, p<0.001) levels. A TG/HDL-c value greater than 3.1% has 91% sensitivity and 77% specificity in detecting hepatosteatosis. Conclusions: We suggest that TG/HDL-c ratio could be a useful marker of non-alcoholic hepatosteatosis due to its inexpensive and easy to assess nature

PALM-COEIN classification system of FIGO vs the classic terminology in patients with abnormal uterine bleeding

Objectives: To evaluate the FIGO’s novel classification system versus the classic terminology in patients with abnormal uterine bleeding. Material and methods: A retrospective study was carried out between August 2015 and September 2019 in the Health Sciences University Gazi Yaşargil Training and Research Hospital. The pathology reports of the patients were classified according to the PALM-COEIN method and were compared with classical terminology. The operated patients with fibroids reported in the pathology results were classified as subgroups of fibroids. Results: Evaluation was made of a total of 515 women with abnormal uterine bleeding. According to the classical terminology, 137 (26.6%) patients were defined with hypermenorrhea, 74 (14.4%) with menorrhagia, 57 (11.1%) with metrorrhagia, and 246 (47.8%) with menometrorrhagia. In the PALM-COEIN classification system, polyps were determined in 84 (16.3%) cases, adenomyosis in 228 [diffuse adenomyosis: 196 (38.1%), local adenomyosis: 32 (6.2%)], leiomyoma in 386 [submu-cous: 161 (31.1%), other types: 225 (43.9%)], and malignancy and hyperplasia in 47 (9.1%). Conclusions: The classical terminology for abnormal uterine bleeding is insufficient in terms of etiological pathologies in non-pregnant women of reproductive age. The widespread use of this novel system for the abnormal uterine bleeding classification will provide a more useful communication between physicians and researchers

Ektopik Gebelik Olgularında Methotrexatın Tedavi Etkinliğinin Değerlendirilmesi

Aim: Our aim in this study was to assess efficacy of singledose methotrexate (MTX) as medical treatment for ectopic pregnancy (EP) by evaluating the results of patients given this treatment. Materials and Methods: Between September 2016 and August 2017, the treatment outcomes of EP cases treated with MTX at Gazi Yaşargil Training and Research Hospital of Health Sciences University were evaluated retrospectively. Results: In total, 126 cases treated for EP were evaluated and 65 cases were included in the study. In cases administered a single dose of MTX, the success rate was 80%, the failure rate was 13.8%, and the emergency surgery rate was 6.2%. The overall success rate of the medical treatment was 90.7% for a second dose of MTX. An unsuccessful result was considered as less than a 15% reduction in the beta-human chorionic gonadotropin (?-hCG) level between 4 and 7 days after single dose MTX administration. In all cases, the rate of emergency surgery after treatment was 9.3%. Conclusions: In our study, success rates in patients with EP treated with MTX were 80% after a single dose and as high as 90.7% when a second dose was addedAmaç: Bu çalışmadaki amacımız ektopik gebelik’ te (EP) medikal tedavi olarak tek doz methotrexat (MTX) tedavisi verilen olguların sonuçlarının değerlendirilmesidir. Materyal ve Metot: Eylül 2016 ile Ağustos 2017 arasında Sağlık Bilimleri Üniversitesi Gazi Yaşargil Eğitim ve Araştırma Hastanesinde tedavi edilen EP olgularında MTX tedavisi uygulanmış olanların tedavi sonuçları retrospektif olarak değerlendirildi. Bulgular: Çalışmanın yapıldığı tarihler arasında EP nedeniyle tedavi edilen 126 olgu çalışmaya dahil edildi. Tek doz MTX tedavisi başlanan olgularda başarı oranı %80, başarısızlık %13.8 ve acil cerrahi oranı %6.2 olarak gerçekleşti. Tek doz MTX uygulaması sonrasında 4 ve 7 günler arsında betahuman chorionic gonadotropin (?-hCG) seviyesinin %15 ten az düşmesi sonucunda başarısız olarak kabul edilen olgularda yapılan 2. doz MTX sonucunda, medikal tedavinin toplam başarı oranı %90.7 olarak gerçekleşirken, bu olguların tümünde tedavi sonrası acil cerrahi oranı %9.3 olarak gerçekleşti. Sonuç: Çalışmamızda uygun endikasyonla MTX tedavisi uygulanan EP olgularında medikal tedavinin başarı oranı %90.7 gibi oldukça yüksek bir oranda gerçekleşmiş olup olguların sadece %9.3 de MTX tedavisi sonrasında acil cerrahi tedavi gerekmiştir

Effect of internal connection type and screw channel angle on the screw stability of anterior implant-supported zirconia crowns.

OBJECTIVES To investigate the effect of implant-abutment connection and screw channel angle on screw stability by comparing a newly introduced and an established connection, before and after cyclic loading. MATERIALS AND METHODS Implants (N = 44) with Torcfit (TF) or Crossfit (CF) connection were divided to be restored with a straight (CFS and TFS) or an angled screw access channel (CFA and TFA) titanium-base abutment (n = 11). CFA and TFA received screw-retained crowns, whereas CFS and TFS received hybrid zirconia abutments and cement-retained crowns. The initial torque value (ITV) of each complex (ITVI ) and removal torque value (RTV) after 24 h (RTVI ) were measured. Screws were replaced with new ones, ITVs were recorded again (ITVF ), and crowns were cyclically loaded (2.4 million cycles, 98 N) to measure RTVs again (RTVF ). Percentage torque loss was calculated. Data were analyzed (α = 0.05). RESULTS ITVs were similar among groups (p ≥ .089). CF led to higher RTVs (p ≤ .002), while CFS had higher RTVI than CFA (p = .023). After 24 h, CFS had lower percentage torque loss than TF, while CFA had lower percentage torque loss than TFA (p ≤ .011). After cyclic loading, CF led to lower percentage torque (p < .001). CONCLUSION The implant-abutment connection affected the removal torque values. However, no screw loosening occurred during cyclic loading, which indicated a stable connection for all groups. Screw access channel angle did not affect screw stability after cyclic loading

Trueness and fit of complete-arch implant-supported frameworks in new-generation additively and subtractively manufactured polymers: An in-vitro study.

BACKGROUND There is limited knowledge on the fabrication trueness and fit of additively or subtractively manufactured complete-arch implant-supported frameworks in recently introduced polymers. PURPOSE To evaluate the trueness and marginal fit of additively or subtractively manufactured polymer-based complete-arch implant-supported frameworks, comparing with those of strength gradient zirconia frameworks. MATERIALS AND METHODS A typodont model with 4 implants (left first molar (abutment 1), left canine (abutment 2), right canine (abutment 3), and right first molar (abutment 4)) was digitized (ATOS Core 80 5MP) and an implant-supported complete-arch framework was designed. This design file was used to fabricate frameworks from 5 different materials: strength gradient zirconia (SM-ZR), high impact polymer composite (SM-CR), nanographene-reinforced PMMA (SM-GR), PMMA (SM-PM), and additively manufactured temporary resin (AM) (n = 10). These frameworks were digitized and each scan file was virtually segmented into 4 regions (abutments, occlusal, overall without occlusal, and overall). The surface deviations at these regions, and linear and interimplant distance deviations were evaluated (Geomagic Control X). Marginal gaps were evaluated according to triple-scan protocol after seating frameworks on the model with the 1-screw test. Data were statistically analyzed (α = 0.05). RESULTS Surface deviations of all regions differed among tested materials (p ≤ 0.001). AM frameworks mostly had surface deviations that were similar to or lower than those of other materials (p ≤ 0.031), except for the occlusal surface, where it mostly had higher deviations (p ≤ 0.013). Abutment 4 of SM-CR had higher linear deviations than abutment 2 (p = 0.025), and material type did not affect the linear deviations within abutments (p ≥ 0.171). Interimplant distance deviations differed within and among materials (p ≤ 0.017), except for those between abutments 1 and 2 among materials (p = 0.387). Marginal gaps of subtractively manufactured materials differed among abutments, while those of abutments 3 and 4 differed among materials (p ≤ 0.003). AM frameworks mostly had lower marginal gaps at abutments 3 and 4 (p ≤ 0.048). CONCLUSIONS Although there was no clear trend among tested materials for measured deviations, marginal gaps of additively manufactured resin were mostly lower than those of subtractively manufactured materials and did not differ among abutment sites. Nevertheless, the differences in measured deviations among materials were small and marginal gaps were within the previously reported acceptability thresholds

The Effect of Seasonal Temperature Changes on Gestational Diabetes Mellitus Prevalence

Aim:The aim of this study was to investigate the effect of seasonal changes in ambient temperature on the prevalence of gestational diabetes mellitus (GDM).Materials and Methods:A retrospective evaluation was performed on the results of patients at 24-28 weeks gestation who underwent a GDM screening at the University of Health Sciences Turkey, Gazi Yaşargil Training and Research Hospital in Diyarbakır, which is a city that is warm and dry in summer and cold and rainy in winter, between January 2017 and December 2017. Pregnant women were divided into four groups according to the season they were screened for GDM. A comparison was made in terms of the prevalence of GDM among pregnant women screened for diagnosis of GDM in different seasons.Results:Of 3,618 pregnant women screened, 7.5% (n=272) were diagnosed with GDM. The seasonal distribution of the GDM cases was 6.4% (n=54) in winter, 8.3% (n=78) in spring, 9.2% (n=84) in summer, and 6.1% (n=56) in autumn. A significant difference was observed in terms of seasonal distribution (p<0.05).Conclusion:The results of this study have demonstrated that seasonal temperature changes have a significant effect on GDM prevalence. However, further studies are needed to better demonstrate this relationship

Unscarred uterine rupture and subsequent pregnancy outcome — a tertiary centre experience

Objectives: The aim of this study was to investigate the incidence, etiology and obstetric outcomes of rupture in unscarreduterine rupture and in those with a history of uterine ruptureMaterial and methods: The hospital records of women who had delivered between May 2005 and May 2017 at a tertiarycenter were examined retrospectively. Data on patients with unscarred uterine rupture in pregnancy who had undergonefertility-preserving surgery were evaluated.Results: During the study period, 185,609 deliveries occurred. Of those, unscarred uterine rupture has occurred in67 women. There were no ruptures reported in nulliparous women. The rupture was observed in the isthmic region in60 (89.6%) patients and in the fundus in 7 (10.4%) patients. Thirty-eight (56.7%) patients had undergone a total or subtotalhysterectomy, and 29 (43.3%) patients had received primary repair. Ten patients had reconceived after the repair. Of these,eight patients who had a history of isthmic rupture, successfully delivered by elective C-section at 36–37 wk. of gestation,and two experienced recurrent rupture at 33 and 34 wk. of gestation, respectively. Both patients had a history of fundalrupture, and their inter-pregnancy interval was 9 and 11 mo., respectively.Conclusions: The incidence of rupture in unscarred pregnant uteri was found to be one per 2,770 deliveries. Owing to thehigh morbidity, regarding more than half of the cases with rupture eventuated in hysterectomy, clinicians should be prudentin induction of labour for multiparous women since it was the main cause of rupture in this series. Short inter-pregnancyintervals and history of fundal rupture may confer a risk for rupture recurrence. Those risk factors for recurrence should bevalidated in another studies