20 research outputs found
Cognitive Maps Pre-School Teachers About Different Approaches Applied in Early Childhood Education
DergiPark: 415921trakyasobedBu araştırmanın amacı, okulöncesi öğretmenlerinin okul öncesi eğitimi şekillendiren düşünürler ve onlarıntemsil ettiği yaklaşımlar hakkındaki görüşlerinin ortaya çıkarılmasıdır.Araştırmada nitel araştırma yöntemlerinden olgu bilim çalışması kullanılmıştır.Araştırmada okul öncesi öğretmenleriningörüşlerini yansıtmak amacıyla bilişsel harita yöntemi kullanılmıştır. AraştırmayaEdirne il merkezinde bulunan Millî Eğitim Bakanlığına bağlı anaokullarındagörev yapmakta olan gönüllü 20 okul öncesi öğretmeni katılmıştır. Veri toplamaaracı olarak araştırmacılar tarafından geliştirilmiş yarı yapılandırılmış görüşmeformu kullanılmıştır. Görüşmeformundan elde edilen veriler katılımcıların bilişsel haritalarını oluşturmaküzere analiz edilmiştir. Araştırma sonuçlarına göre okul öncesi öğretmenlerininokul öncesi eğitimi şekillendiren düşünürler hakkında en çok Froebel ve Montessori hakkında bilgi sahibi oldukları, okul öncesiöğretmenlerinin en çok MontessoriYaklaşımı hakkında bilgi sahibi oldukları ve sınıf içi etkinliklerinde daha çok Montessori, Reggio Emillia ve HighScope Yaklaşımları’ndan yararlandıkları tespit edilmiştir. The purpose of the study is toreveal the opinions of preschool teachers about the thinkers who shapepreschool education and the approaches they represent. A phenomenologic methodof qualitative research is used in this study. Cognitive maps have been used tobetter reflect preschool teachers' opinions. The participants of the study are 20 pre-school teachers who were working in Edirneprovince in kindergartens bound to the Ministry of National Education. As ameans of collecting data in the survey, a semi-structured interview form wasdeveloped by the researchers. The data from the Interview Form was analyzed togenerate cognitive maps of participants' pre-school education approachesapplied around the world. According to the results of the research, it was foundout that pre-school teachers know Froebel and Montessori as thinkers who shapedpre-school education and the Montessori approach better. Thus the study revealsthat teachers use Montessori, Reggio Emillia and High Scope Approaches more inclass activities.
Shear wave splitting and mantle flow beneath LA RISTRA
Shear-wave splitting parameters (fast polarization direction and delay time) are determined using data from LA RISTRA (Colorado pLAteau RIo Grande Rift/Great Plains Seismic TRAnsect), a deployment of broadband seismometers extending from the Great Plains, across the Rio Grande Rift and the Jemez Lineament, to the Colorado Plateau. Results show that the fast polarization directions are sub-parallel to North American absolute plate motion. The largest deviations from the plate motion are observed within the western edge of the Great Plains and in the interior of the Colorado Plateau where lithospheric anisotropy may be significant. Delay times range from 0.8 to 1.8 seconds with an average value of 1.4 seconds; the largest values are along the Jemez Lineament and the Rio Grande Rift which are underlain by an uppermost mantle low velocity zone extending to depths of ∼200 km. The anisotropy beneath the central part of LA RISTRA shows a remarkably consistent pattern with a mean fast direction of 40° ± 6°. Seismic anisotropy can be explained by differential horizontal motion between the North American lithosphere and westerly to southwesterly flow of the asthenospheric mantle. The approximately N-S fast direction found beneath western Texas is similar to that observed beneath the southern rift and may reflect a different dynamic regime
A Rare Cause of Recurrent Vulvar Pain: Case Presentation of Periclitoral Abscess
Periklitoral abse, şiddetli vulvar ağrıya yol açan nadir bir hastalıktır. Günümüze dek ancak birkaç vaka bildirilmiştir ve bir grup hastada gösterildiği üzere kadın sünneti dışında nedeni tam olarak belli değildir. Periklitoral abse tekrarlayabilir ve premenarşal genç kızlarda görülebilir. Antibiyotik tedavisi ve marsupializasyon tedavi seçeneklerindendir. Bu vakada, tekrarlayan periklitoral abseli hastaya yaklaşım anlatılmıştır.Periclitoral abscess is a very rare disorder causing severe vulvar pain. There are only few cases that have been reported and the etiology is still unclear except some cases were found to be related to fe- male circumcision in a group of patients. Periclitoral abscess can be recurrent and has also been seen in premenarchal girls. Antibiotic treatment and marsupialization are the treatment options. In this report, management of a case with recurrent periclitoral abscess is presente
Recurrent Hydatiform Mole: Report of A Case with Fourth Recurrence
In this report, it is objected to demonstrate 4th recurrence of molar pregnancy in a patient with a past history of 3 suction curettages for 2 complete and 1 partial moles. A 31-year-old woman was referred to our hospital with diagnosis of mole. There was no history of consanguinity. The mother of the patient had history of molar pregnancy and both sisters had primary infertility and IVF failures. Karyotype analysis of the patient and her husband was normal. The calculated serum β-hCG level was 188000IU/ml and she had an endometrial thickness of 40mm with a crumb like image. Thyroid function tests were normal. Suction curettage was performed and histopathological examination revealed complete HM. The patient
is still being followed up with serial serum β-hCG levels. Families who have recurrent molar pregnancies should be informed about that subsequent pregnancies are at increased risk of having molar conception
Management of a Viable Ectopic Pregnancy on Caesarean Scar After IVF-ET Procedure: A Case Presentation
To present the management of a viable ectopic pregnancy on caesarean scar following IVF-ET procedure. A 33-year old woman with gravida 2, parity 1 admitted to our outpatient clinic in her 8th weeks of gestation. She had a previous caesarean section 4 years ago. Transabdominal ultrasound examination revealed empty uterine cavity and cervical canal, but an intramural viable gestation near the cesarean scar. Laparotomy was performed. The gestational sac was bulging and thinning out the uterine wall anteriorly at the scar site. We evacuated the products of conception and repaired scar. After 2 hours from the operation an abundant vaginal bleeding occurred and an emergent relaparatomy performed. No active
bleeding focus could be detected but bilateral uterine arteries were ligated. As a result, caesarean scar pregnancy is a highly complicated type of ectopic pregnancy and should be kept in mind during routine obstetric practice
Prolonged Harvest Time on Amniotic Cell Culture: Is it Offer Important in Prediction of Fetuses with Trisomies?
OBJECTIVE: In this study, it was objected to investigate the difference in harvest time of amniotic fluids obtained at amniocentesis of normal and trisomic fetuses.
STUDY DESIGN: 113 samples of amniotic fluid were obtained at amniocentesis procedures carried out for several indications at Necmettin Erbakan University Meram Faculty of Medicine, Obstetrics and Gynecology Department between August 2010 to August 2011. Harvest time on amniotic cell culture was both evaluated and compared in 100 samples with normal genetic results and 13 samples with trisomy
results.
RESULTS: There were no statistically significant differences between normal and trisomic groups regarding age, gravidity, parity, and gestational week at amniocentesis (p>0.05). Mean harvest time in cultures of amniotic fluids obtained from genetically normal fetuses was 15.84±2.12 days (12-22 days), whereas it was 15.80± 2.47 days (13-20 days) in cultures of amniotic fluids obtained from trisomic gestations. There was no statistically significant difference between groups regarding intervals to harvest.
CONCLUSION: In this study, initial hypothesis was that there may be a possible association of prolonged harvest time with trisomic chromosomal aberrations. Our results concluded that harvest time does not differ between normal and trisomic amniotic fluid cultures
Seismic structure of Kuwait
We have used data from the Kuwait National Seismic Network (KNSN) to estimate the seismic structure of Kuwait using a limited amount of seismic data. First, we made surface wave dispersion measurements and calculated receiver functions from the relatively small amount of data available from the broad-band station, KBD. Models were derived from the joint inversion of teleseismic receiver functions and Rayleigh and Love fundamental mode surface wave group velocity dispersion. While both surface waves and receiver functions by themselves can be used to estimate lithospheric structure, we have successfully combined the two to reduce non-uniqueness in estimates based on the individual data sets. The resulting KUW1 model features a thick (8 km) sedimentary cover and crustal thickness of 45 km. Crustal velocities below the sedimentary cover are consistent with global averages for stable platforms. We infer upper-mantle velocities (7.84 km s-1 P-wave velocity; 4.40 km s-1 S-wave velocity) that are slightly lower than expected for a stable platform. In comparison with other crustal structure estimates for the Arabian platform to the west, the crust is thicker and the mantle is slower in Kuwait. This is consistent with the overall tectonic trends of the region that find increasing crustal thickness between the divergent plate boundary at the Red Sea and the convergent plate boundary at the Zagros Mts, as well as slow mantle velocities beneath this nearby orogenic zone. The resulting model fits the traveltimes of regional phases (Pn, Pg, Sn and Lg). Independent inversion of local earthquake traveltimes recorded by KNSN (allowing for event hypocentre relocation) results in a remarkably similar velocity structure, providing confidence that the joint inversion of receiver functions and surface wave group velocities can impose accurate constraints on crustal structure for local event location and network operations. Relocation of events in Kuwait improves the clustering of events and results in shallower hypocentres
Hydrocarbon degradation abilities of psychrotolerant Bacillus strains
WOS: 000406747800006Biodegradation requires identification of hydrocarbon degrading microbes and the investigation of psychrotolerant hydrocarbon degrading microbes is essential for successful biodegradation in cold seawater. In the present study, a total of 597 Bacillus isolates were screened to select psychrotolerant strains and 134 isolates were established as psychrotolerant on the basis of their ability to grow at 7 degrees C. Hydrocarbon degradation capacities of these 134 psychrotolerant isolate were initially investigated on agar medium containing different hydrocarbons (naphthalene, n-hexadecane, mineral oil) and 47 positive isolates were grown in broth medium containing hydrocarbons at 20 degrees C under static culture. Bacterial growth was estimated in terms of viable cell count (cfu ml(-1)). Isolates showing the best growth in static culture were further grown in presence of crude oil under shaking culture and viable cell count was observed between 8.3 x 10(5)-7.4 x 10(8) cfu ml-1. In the final step, polycyclic aromatic hydrocarbon (PAH) (chrysene and naphthalene) degradation yield of two most potent isolates was determined by GC-MS along with the measurement of pH, biomass and emulsification activities. Results showed that isolates Ege B.6.2i and Ege B.1.4Ka have shown 60% and 36% chrysene degradation yield, respectively, while 33% and 55% naphthalene degradation yield, respectively, with emulsification activities ranges between 33-50%. These isolates can be used to remove hydrocarbon contamination from different environments, particularly in cold regions.Dokuz Eylul University Research Foundation (BAP); Scientific Research Foundation of Dokuz Eylul University [2007.KB.FEN.057]The authors wish to thank to Dokuz Eylul University Research Foundation (BAP) for the supporting the project namely "Removal of Petrochemical Industry Wastewaters in Anaerobic and Aerobic sequentials". This study was supported in part by the Scientific Research Foundation of Dokuz Eylul University (Project No. 2007.KB.FEN.057)
Amnion Hücre Kültüründe Uzamış Harvest Zamanı Trisomik Fetusların Öngörülmesinde Yardımcı Olabilir mi?
AMAÇ: Bu çalışmada, normal ve trisomik fetuslardan alı nan amniotic sıvılarda harvest zamanları arasındaki farklılığı araş- tırmayı amaçladık. GEREÇ VE YÖNTEM: Necmettin Erbakan Üniversitesi Meram Tıp Fakültesi Kadın Hastalıkları ve Doğum kliniğinde Ağustos 2010- Ağustos 2011 tarihleri çeşitli endikasyonlar ile gerçekleştirilen amniosentez işlemlerinden toplam 113 amnion sıvı örneği alındı. 13 trisomik fetusa ve 100 normal fetusa ait amnion hücre kültürlerinde harvest zamanları kar şı laş tırıldı. BULGULAR: Trisomik hasta grubu ve normal kontrol gru bu arasında yaş, gravidite, parite ve amniosentez esna sın daki gestasyonel yaş açısından istatistiki olarak anlamlı farklılık tespit edilmedi (p0,05). Genetik olarak normal olan fetuslardan alınan amnion hücre kültürlerinde ortalama harvest zamanı 15.842.12 gün (12-22 gün), trisomik fetuslara ait amnion hücre kültürlerinde ise 15.802.47 gün (13-20 gün) idi. Her iki grup arasında harvest zamanları açısından istatistiki olarak anlamlı farklılık tespit edilmedi. SONUÇ: Bu çalışmada, başlangıç hipotezi trisomik fetuslara ait amnion hücre kültürlerinde harvest zamanının uzayabilece- ği yönünde idi. Sonuçlarımız normal fetuslara ait hücre kültürleri ile trisomik fetuslara ait amnion hücre kültürlerinde harvest zamanının farklılık göstermediğini desteklemektedir.AMAÇ: Bu çalışmada, normal ve trisomik fetuslardan alı nan amniotic sıvılarda harvest zamanları arasındaki farklılığı araş- tırmayı amaçladık. GEREÇ VE YÖNTEM: Necmettin Erbakan Üniversitesi Meram Tıp Fakültesi Kadın Hastalıkları ve Doğum kliniğinde Ağustos 2010- Ağustos 2011 tarihleri çeşitli endikasyonlar ile gerçekleştirilen amniosentez işlemlerinden toplam 113 amnion sıvı örneği alındı. 13 trisomik fetusa ve 100 normal fetusa ait amnion hücre kültürlerinde harvest zamanları kar şı laş tırıldı. BULGULAR: Trisomik hasta grubu ve normal kontrol gru bu arasında yaş, gravidite, parite ve amniosentez esna sın daki gestasyonel yaş açısından istatistiki olarak anlamlı farklılık tespit edilmedi (p0,05). Genetik olarak normal olan fetuslardan alınan amnion hücre kültürlerinde ortalama harvest zamanı 15.842.12 gün (12-22 gün), trisomik fetuslara ait amnion hücre kültürlerinde ise 15.802.47 gün (13-20 gün) idi. Her iki grup arasında harvest zamanları açısından istatistiki olarak anlamlı farklılık tespit edilmedi. SONUÇ: Bu çalışmada, başlangıç hipotezi trisomik fetuslara ait amnion hücre kültürlerinde harvest zamanının uzayabilece- ği yönünde idi. Sonuçlarımız normal fetuslara ait hücre kültürleri ile trisomik fetuslara ait amnion hücre kültürlerinde harvest zamanının farklılık göstermediğini desteklemektedir
Source mechanisms of mine-related seismicity, Savuka Mine, South Africa
We report full moment tensor solutions for 76 mine tremors with moment magnitudes (Mw) between 0.5 and 2.6 recorded by a network of 20 high-frequency geophones in a deep gold mine in South Africa. Source mechanisms convey important information on how in-mine stresses are relaxed, and understanding the nature of such mechanisms is essential for improving our assessment of rock mass response to mining. Our approach has consisted of minimizing the L2 norm of the difference between observed and predicted P, SV, and SH spectral amplitudes, with visually assigned polarities, to constrain all six independent components of the seismic moment tensor. Our results reveal the largest principal stresses in the mine are compressive, oriented near vertically, and relaxed through a mix of volumetric closure and normal faulting, consistent with a gravity-driven closure of the mined-out areas. Previous moment tensor studies in deep mines had suggested that the distribution of seismic sources in terms of the volumetric-shear mix was bimodal. A bimodal distribution is compatible with our moment tensor solutions only for moment magnitudes above 2.2. Events in the 0.5 < Mw < 2.2 moment magnitude range display a continuous distribution of their volumetric-shear mix