26 research outputs found
Kıvırcık, Sakız ve Gökçeada Yerli Irk Dişi Kuzuların İlk Yaş Üreme ve Büyüme Özellikleri
Bu çalışma, Bandırma Koyunculuk Araştırma İstasyonunda yetiştirilen Kıvırcık, Sakız ve Gökçeada yerli koyun ırklarımızın ilk yaş üreme özellikleri ve büyüme performansını belirlemek amacıyla yapılmıştır. Araştırmada ilk yaş üreme özellikleri için 15 baş Kıvırcık, 8 baş Sakız ve 10 baş Gökçeada dişi kuzu, büyüme özellikleri için ise 16 baş Kıvırcık, 12 baş Sakız ve 11 baş Gökçeada dişi kuzunun verileri kullanılmıştır. Kızgınlık tespitleri kuzuların beşinci ayını doldurması ile beraber arama koçları ile on iki saat arayla günde iki kez yapılmıştır. Kıvırcık, Sakız ve Gökçeada kuzularında ilk kızgınlık canlı ağırlığı sırasıyla; 37,93; 33,35 ve 29,75 kg, ilk kızgınlık yaşı; 315, 320 ve 337 gün, kızgınlık süresi; 30,99; 25,85 ve 20,28 saat, kızgınlık siklusu; 16,59; 17,91 ve 17,76 gün bulunmuştur. Kıvırcık, Sakız ve Gökçeada dişi kuzuların doğum ağırlığı sırasıyla; 3,64; 3,90; 3,28 kg, sütten kesim ağırlığı; 31,01; 25,44 ve 23,67 kg, altıncı ay canlı ağırlığı; 32,87; 26,95 ve 24,15 kg, bir yaş canlı ağırlığı; 39,01; 30,95 ve 30,27 kg ve günlük canlı ağırlık artışı; 0,271; 0,257 ve 0,202 kg bulunmuştur.This study was conducted to determine first age reproduction characteristics of indigenous Kıvırcık, Sakız and Gökçeada sheep breeds and growth performances of ewe lambs which have been kept in Bandırma Sheep Research Station (BSRS). The data of reproduction characteristics of ewes and growth characteristics of lambs were collected on 15 Kıvırcık, 8 Sakız and 10 Gökçeada ewes, and on 16 Kıvırcık, 12 Sakız and 11 Gökçeada lambs, respectively. After the lambs completed their fifth month ages, estrus detection was carried out with a teaser ram twice a day with 12 hour intervals. For the Kıvırcık, Sakız and Gökçeada lambs, the first oestrus weights were 37.93, 33.35 and 29.75 kg; first oestrus ages were 315, 320 and 337 days; oestrus durations were 30.99, 25.85 and 20.28 hours and the duration of the oestrus cycles were 16.59, 19.91 and 17.76 days, respectively. The birth weights of Kıvırcık, Sakız and Gökçeada lambs were found to be 3.64, 3.91, 3.28 kg; the weaning weight (WW), 31.01, 25.44 and 23.67 kg, the six month live weight (SMLW), 32.87, 26.95 and 24.15 kg, the yearling live weight (YLW), 39.01, 30.95 and 30.27 kg and the average daily weight gain (ADWG), 0.271 0.257 and 0.202 kg, respectivel
Outcomes of elective liver surgery worldwide: a global, prospective, multicenter, cross-sectional study
Background:
The outcomes of liver surgery worldwide remain unknown. The true population-based outcomes are likely different to those vastly reported that reflect the activity of highly specialized academic centers. The aim of this study was to measure the true worldwide practice of liver surgery and associated outcomes by recruiting from centers across the globe. The geographic distribution of liver surgery activity and complexity was also evaluated to further understand variations in outcomes.
Methods:
LiverGroup.org was an international, prospective, multicenter, cross-sectional study following the Global Surgery Collaborative Snapshot Research approach with a 3-month prospective, consecutive patient enrollment within January–December 2019. Each patient was followed up for 90 days postoperatively. All patients undergoing liver surgery at their respective centers were eligible for study inclusion. Basic demographics, patient and operation characteristics were collected. Morbidity was recorded according to the Clavien–Dindo Classification of Surgical Complications. Country-based and hospital-based data were collected, including the Human Development Index (HDI). (NCT03768141).
Results:
A total of 2159 patients were included from six continents. Surgery was performed for cancer in 1785 (83%) patients. Of all patients, 912 (42%) experienced a postoperative complication of any severity, while the major complication rate was 16% (341/2159). The overall 90-day mortality rate after liver surgery was 3.8% (82/2,159). The overall failure to rescue rate was 11% (82/ 722) ranging from 5 to 35% among the higher and lower HDI groups, respectively.
Conclusions:
This is the first to our knowledge global surgery study specifically designed and conducted for specialized liver surgery. The authors identified failure to rescue as a significant potentially modifiable factor for mortality after liver surgery, mostly related to lower Human Development Index countries. Members of the LiverGroup.org network could now work together to develop quality improvement collaboratives
Density-aware cell zooming
Ultra-dense deployments and mobile cells significantly change cellular networking paradigm. Infrastructure and topology of cellular networks become dynamic as opposed to legacy systems where the infrastructure is assumed to be stationary. As topology morphs, base station or user density of networks also change impacting the performance in terms of resource utilization and quality of service. To increase network capacity, preserve coverage and conserve energy, network density should be considered in communication stacks to make the network density-aware and -adaptive. In this work, we analyze the impact of density on network outage in cellular networks. We propose a novel cell zooming technique at run-time considering network outage and density jointly with a three-dimensional base station density estimator