Burst Tails from SGR J1550-5418 Observed with Rossi X-ray Timing Explorer

We present the results of our extensive search using the Bayesian block method for long tails following short bursts from a magnetar, SGR J1550-5418, over all RXTE observations of the source. We identified four bursts with extended tails, most of which occurred during its 2009 burst active episode. The durations of tails range between ~13 s and over 3 ks, which are much longer than the typical duration of bursts. We performed detailed spectral and temporal analysis of the burst tails. We find that the spectra of three tails show a thermal nature with a trend of cooling throughout the tail. We compare the results of our investigations with the properties of four other extended tails detected from SGR 1900+14 and SGR 1806-20 and suggest a scenario for the origin of the tail in the framework of the magnetar model.Comment: 10 pages, 7 figures, 4 tables, accepted for publication in Ap

Prevalence of Becker Nevus in Young Men

Background and Design: Becker nevus (BN), characterized by sharply and irregularly bordered, unilaterally localized, hyperpigmented macules and patches which can go along with hypertrichosis, is a kind of hamartomatous lesion that predominantly affects males 4-6 times more frequently than females. It is usually seen in peripubertal period. There are scarce epidemiological data on BN and the prevalence in our country is also unknown. In this prospective, cross-sectional study, we aimed to determine the prevalence of BN among young adult males in Turkey.Materials and Methods: 8207 male candidates from different regions of Turkey who would be selected as a student in a governmental school and were referred to the dermatology outpatient clinic between March 2012 and August 2012, were included in our study. In addition to comprehensive medical examination, candidates were also inspected for the presence of BN, its localization, the asociation with hypertrichosis, and the findings were recorded.Results: The mean age of the candidates was 20.02±1.40 (range: 18-22) years and the mean age at BN onset was 12.2. BN was detected in 68 out of 8207 candidates (two different localizations in one subject). The prevalence of BN was calculated as 0.82%. The distribution of BN localization was as follows: mostly on the pectoral region ( 24.64%), and in decreasing order, on the scapular region (23.18%), shoulder (18.84%), infrascapular region (17.39%), arm (5.80%), abdomen (5.80%) and the thigh (4.35%). Hypertrichosis was present on 34 out of 69 BN (49.2%) that were found in 68 subjects.Conclusion: In our study, it was determined that BN was mainly localized on the pectoral and scapular regions, the prevalence was 0.82% and, 49,2% of the lesions were hypertrichotic

A glitch and an anti-glitch in the anomalous X-ray pulsar 1E 1841-045

We investigated the long-term spin properties of the anomalous X-ray pulsar (AXP) 1E 1841-045 by performing a temporal analysis of archival RXTE observations spanning about 5.2 yr from 2006 September to 2011 December. We identified two peculiar timing anomalies within ~1 yr of each other: a glitch with Delta(nu)/nu ~ 4.8 x 10^{-6} near MJD 54303; and an anti-glitch with Delta(nu)/nu ~ -5.8 x 10^{-7} near MJD 54656. The glitch that we identified, which is the fourth glitch seen in this source in the 13 yr of RXTE monitoring, is similar to the last two detected glitches. The anti-glitch from 1E 1841-045, however, is the first to be identified. The amplitude of the anti-glitch was comparable with that recently observed in AXP 1E 2259+586. We found no significant variations in the pulsed X-ray output of the source during either the glitch or the anti-glitch. We discuss our results in relation to the standard pulsar glitch mechanisms for the glitch, and to plausible magnetospheric scenarios for the anti-glitch.Comment: 6 pages, 3 figures, 3 tables, published in MNRA

The effect of local people's perception of heliski tourism as an alternative type of tourism on heliski tourism support: The case of Rize

Bu araştırmada Rize’de ikamet eden yerel halkın heliski turizminin gelişimine bağlı olarak ortaya çıkan pozitif etkilere yönelik algısı ve bu algıların heliski turizminin gelişimine verdikleri destek üzerindeki etkisini belirlemek amaçlanmıştır. Araştırma yöntembilimin üç ana yaklaşımı içerisinde yer alan nicel araştırma yöntemi ile yapılandırılmıştır. Araştırmanın teorik alt yapısı sosyal değişim teorisine dayandırılmaktadır. Araştırma verileri kolayda örnekleme yöntemi kullanılarak anket tekniği ile Rize’de ikamet eden yerel halkın görüşleri alınarak elde edilmiştir. Hatalı ve eksik anketler çıkartılarak 400 anket analize tabi tutulmuştur. Araştırma sonuçlarına göre heliski turizminin sosyo-kültürel pozitif ve ekonomik pozitif etkileri ile heliski turizmi gelişimine verilen destek arasında yüksek düzeyde, pozitif ve anlamlı; çevresel pozitif etkiler ile heliski turizminin gelişimine verilen destek arasında negatif bir ilişki olduğu görülmüştür. Heliski turizmine verilen desteği etkileyen ekonomik, sosyo-kültürel ve çevresel boyut arasından en önemli görülen ekonomik boyut olurken, heliski turizmi desteğini olumsuz yönde etkileyen unsurun ise, çevresel boyut olduğu belirlenmiştir.In this research, it was aimed to determine the perception of the local people residing in Rize towards the positive effects on the development of heliski tourism and the effect of these perceptions on the support they give to the development of heliski tourism. The research was structured by the quantitative research method, which is one of the three main approaches of methodology. The theoretical background of the research is based on the theory of social change. The research data were obtained by taking the opinions of the local people residing in Rize through the survey technique, using the convenience sampling method. Incorrect and incomplete questionnaires were removed and 400 questionnaires were analyzed. According to the results of the research, there is a high level, positive and significant difference between the socio-cultural positive effects and economic positive effects of heliski tourism and the support given to the development of heliski tourism, while there is a negative relationship between environmental positive effects and the support given to the development of heliski tourism. While the economical dimension was determined to be the most important among the economic, socio-cultural and environmental dimensions that affect the support given to heliski tourism, the environmental dimension was found to negatively affect the support of heliski tourism

Relationship Between Atopy Patch Test with Foods and SCORAD

Background and Design: The relationship between food and atopic dermatitis (AD) is controversial. Atopy patch test (APT) gained prominence due to low specificity of “fresh prick tests” (FPT) with foods, commonly late occurrence of lesions in AD and, thus, the inconsistencies in anamneses, and being the provocative tests time consuming and risky, as well as due to the role of T lymphocytes in the pathophysiology of the disease. In this study, we investigated the relationship of APT and FPT made with food with SCORAD index assessing the disease severity.Materials and Methods: Forty-five children (21 males and 24 females) aged between 2-15 years who were diagnosed with AD in our outpatient clinic between May 2006 and May 2007 were included in the study. FPT and APT with eggs, milk and wheat flour were performed in all patients. The severity of illness was assessed using the SCORAD index. Statistical analysis was performed using SPSS version 11.0 for Windows. A p value of less than 0.05 was considered statistically significant

(3aR,6S,7aR)-7a-Bromo-2-methyl­sulfonyl-1,2,3,6,7,7a-hexa­hydro-3a,6-ep­oxy­isoindole

In the title compound, C9H12BrNO3S, the two tetra­hydro­furan rings adopt envelope conformations, the pyrrolidine ring adopts a half-chair conformation and the six-membered ring is in a boat conformation. In the crystal, weak inter­molecular C—H⋯O hydrogen bonds link the mol­ecules into R 2 2(8) and R 2 2(14) rings along the b-axis direction

Case Report: Neo-ostium creation with saphenous vein in a patient with anomalous origin of the right coronary artery

Anomalous origin of the right coronary artery from the left sinus of Valsalva is a rare congenital anomaly. Most patients may be asymptomatic, but some may experience major cardiac events such as syncope, arrhythmias, and sudden cardiac death. We present a 16-year-old patient, who had several syncopes, with anomalous origin of the right coronary artery from the left coronary sinus, with an intramural and interarterial course between the pulmonary artery and the aorta. We describe a new surgical procedure of neo-ostium creation with a saphenous vein

DESIGN AND IMPLEMENTATION OF AN AUTONOMOUS VEHICLE FOR WASTE MATERIAL COLLECTION AND FIRE DETECTION

Autonomous vehicles are becoming increasingly popular in a variety of applications, including waste collection and fire detection. In this work, we present the design and implementation of an autonomous vehicle for these tasks in urban environments. The vehicle is equipped with sensors and control algorithms to navigate, detect and collect plastic bottle wastes, and detect fires in real-time. The system uses an off-the-shelf, small-sized, battery-operated vehicle, a simple conveyor belt, and a vision-based, computerized system. Machine learning (ML-) based vision tasks are implemented to direct the vehicle to waste locations and initiate the waste removal process. A fire detection and alarm system are also incorporated, using a camera and machine learning algorithms to detect flames automatically. The vehicle was tested in a simulated urban environment, and the results demonstrate its effectiveness in waste material collection and fire detection. The proposed system has the potential to improve the efficiency and safety of such tasks in urban areas

The Sariçiçek Howardite Fall in Turkey: Source Crater of HED Meteorites on Vesta and İmpact Risk of Vestoids

The Sariçiçek howardite meteorite shower consisting of 343 documented stones occurred on 2 September 2015 in Turkey and is the first documented howardite fall. Cosmogenic isotopes show that Sariçiçek experienced a complex cosmic ray exposure history, exposed during ~12–14 Ma in a regolith near the surface of a parent asteroid, and that an ~1 m sized meteoroid was launched by an impact 22 ± 2 Ma ago to Earth (as did one third of all HED meteorites). SIMS dating of zircon and baddeleyite yielded 4550.4 ± 2.5 Ma and 4553 ± 8.8 Ma crystallization ages for the basaltic magma clasts. The apatite U-Pb age of 4525 ± 17 Ma, K-Ar age of ~3.9 Ga, and the U,Th-He ages of 1.8 ± 0.7 and 2.6 ± 0.3 Ga are interpreted to represent thermal metamorphic and impact-related resetting ages, respectively. Petrographic, geochemical and O-, Cr- and Tiisotopic studies confirm that Sariçiçek belongs to the normal clan of HED meteorites. Petrographic observations and analysis of organic material indicate a small portion of carbonaceous chondrite material in the Sariçiçek regolith and organic contamination of the meteorite after a few days on soil. Video observations of the fall show an atmospheric entry at 17.3 ± 0.8 kms-1 from NW, fragmentations at 37, 33, 31 and 27 km altitude, and provide a pre-atmospheric orbit that is the first dynamical link between the normal HED meteorite clan and the inner Main Belt. Spectral data indicate the similarity of Sariçiçek with the Vesta asteroid family (V-class) spectra, a group of asteroids stretching to delivery resonances, which includes (4) Vesta. Dynamical modeling of meteoroid delivery to Earth shows that the complete disruption of a ~1 km sized Vesta family asteroid or a ~10 km sized impact crater on Vesta is required to provide sufficient meteoroids ≤4 m in size to account for the influx of meteorites from this HED clan. The 16.7 km diameter Antonia impact crater on Vesta was formed on terrain of the same age as given by the 4He retention age of Sariçiçek. Lunar scaling for crater production to crater counts of its ejecta blanket show it was formed ~22 Ma ago

Characterization of oranged flesh pure lines and determination of beta carotene contents in Altınbas group melons.

TEZ9823Tez (Yüksek Lisans) -- Çukurova Üniversitesi, Adana, 2013.Kaynakça (s. 59-64) var.xi, 65 s. : res. (bzs. rnk.), tablo ; 29 cm.Sunulan bu tez çalışmasının amacı, ülkemizde açık tarlada en fazla yetiştiriciliği yapılan, meyve dış görüntüsü olarak en fazla tercih edilen Cucumis melo var. inodorus alt türüne ait Kırkağaç kavunlarının dihaplodizasyon yöntemiyle geliştirilmiş saf hatlarından turuncu meyve et rengine sahip 30 adet saf hattın ve 1 adet (negatif kontrolün) kontrolün modifiye edilmiş UPOV deskriptörüne göre 63 özellik bakımından morfolojik karakterizasyonunun yapılması ve geliştirilen saf hatların ?-karoten içeriklerinin tespit edilmesidir. Bu çalışmada, Çukurova Üniversitesi ile Antalya Tarım A.Ş. arasında yürütülen Bilim Sanayi ve Teknoloji Bakanlığı’nın 00655-STZ-2010/2 SANTEZ projesinden elde edilen turuncu meyve etine sahip dihaploid kavun saf hatları kullanılmıştır. Kantitatif karakterlerde ölçümler yapılarak bitkilerde hipokotil uzunluğu, kotiledon uzunluğu, kotiledon genişliği, ana gövde boğum sayısı, boğum arası uzunluğu, yaprak uzunluğu, yaprak genişliği, yaprak sapı uzunluğu ve olgun meyvelerde; meyve ağırlığı, meyve çapı, meyve yüksekliği, çekirdek evi çapı, çekirdek evi yüksekliği, meyve eti kalınlığı, suda çözünebilir kuru madde miktarı ve ?-karoten içeriği ölçülmüştür. Araştırma sonuçlarına göre 30 adet saf hat ve 1 adet kontrol değişik özellikler bakımından çeşitli düzeylerde birbirinden farklı bulunmuştur. ?-karoten içeriği açısından çalışmada kullanılan hatlardan en zengin 10-45-3, 10-5-5, 9-61 ve 9-13 hatları olmuştur.The objectives of this presented study were; the characterization of 30 oranged flesh melon pure lines and 1 control (negative control) Kirkagac melon belonging to Cucumis melo var. inodorus which is the most grown and fruit external appearances are the most preferred melon in Turkey’s open field according to modified UPOV descriptors for 63 characters and determination of ?-carotene content of the pure lines. In this study, oranged flesh dihaploid melon pure lines obtained from 00655- STZ-2010/2 SANTEZ Project, supported by Ministry of Science, Industry and Technology and carried out between Çukurova University and Antalya Tarım Inc., were used. Some quantitative characters as plants hypocotyl length, cotyledon length, cotyledon width, number of nodes on main stem, length of inter nodes, leaf blade length, leaf blade width, petiole length and on matured fruits; fruit weight, fruit diameter, fruit lenght, diameter of seed cavity, lenght of seed cavity, thickness offlesh, total soluble solids and ?-carotene content were also measured on the plants. According to research results, 30 pure lines and 1 control showed different level of variation from each other. The highest ?-carotene content was obtained from 10-45-3, 10-5-5, 9-61 and 9-13 lines.Bu çalışma Ç.Ü. Bilimsel Araştırma Projeleri Birimi tarafından desteklenmiştir. Proje No: 00655-STZ-2010/2