92 research outputs found

    The Effects of Monochromatic Lighting on Hatch Window and Hatching Performance in Broiler Breeder Eggs

    Get PDF
    In this study, the effects of monochromatic lighting on egg weight loss, embryonic mortality, hatch window and hatching performance were investigated. The number of eggs used in the experiment was a total of 780 (Ross-308 genotype). Eggs were randomly assigned to 3 groups. 1) Control group%253A Eggs were incubated in dark, 2) Green light group%253A 560 nm (wavelength from 535 to 585 nm), 3) Red light group%253A 670 nm (wavelength from 640 to 690 nm). During the first 18 days of the incubation period, continuous illumination of 0.1-0.2 lx intensity was provided with LEDs placed on both sides of the trays. The light transmission was prevented by blank trays coated with greenhouse covering material which has 75%25 shading feature placed among experiment groups. In this way, light transmission to other trays and any possible hitches of air circulation was prevented. There was no difference between examined egg weights of the treatment groups in the experiment, but its found that significant difference in egg weight loss for both colours of light. Red light and control groups (15.00%25 and 11.92%25) show a similar embryonic mortality rate, while the green light group has a lower embryonic mortality rate (5.00%25) than these groups. The effects of monochromatic lighting on the hatching time were significant (Chi-squarelt%253B0.05). Although there was no significant difference between hatching performance parameters of the control and red light treatment groups in the experiment, the green light group had better hatching efficiency than the other groups. The findings of this research were carried out with two different light wavelengths are remarkable for showing that the significant effects of the monochromatic illumination on hatching results

    Assessment of the Prevalence of Pulp Stones in a Sample of Turkish Central Anatolian Population

    Get PDF
    Objective. The aim of this study was to determine the prevalence of pulp stones (PS) in a Turkish dental patient population with respect to sexes and dental localization in relation between sex and this anomaly. Materials Methods. A retrospective study was performed using bitewing radiographs of 814 patients ranging in age from 15 to 65. All data (age, sex, and location) was obtained from the files. These patients were analyzed for pulp stones. Descriptive characteristics of sexes, jaws, and dental localization were recorded. The Pearson chi-squared test was used. Results. Of the patients, 462 (56.8%) were female and 352 (43.2%) were male. Sixty (12%) had one or more teeth that contained pulp stones. Pulp stones were identified in 518 (63.6%) of the subjects and in 2391 (27.8%) of the teeth examined. Pulp stone occurrence was significantly more common in the females than in males. With the increasing of age, the prevalence of pulp stones increased. Molars had statistically more pulp stones than premolars. Pulp stones were significantly more common in the maxilla compared with mandible. Conclusion. Prevalence of pulp stones in Turkish population was 27.8% but further larger-scale studies are required to assess its prevalence in the general population to compare it with other ethnic groups

    The Effects of In Ovo Injection of Propolis Extract to Breeder Eggs on Hatchability and Early Performance in Broilers

    Get PDF
    This research was conducted to determine the effects of in ovo injection of propolis extract into the amnion to breeder eggs on hatchability and early performance in broilers. For this purpose, a total of 250 Ross 308 broiler breeder hatching eggs were obtained from a commercial hatchery. Eggs were divided into four groups randomly, isotonic serum sodium (0.9%25) was injected at the level of 0.2 ml into the first group and there were used as positive control (PC) group, whereas there was no treatment on negative control (NC) group. Where the amount of 0.2 ml prepared mixture which is included %253 propolis extract were injected into low propolis (LP) group, 0.2 ml prepared mixture which is included %256 propolis extract were given into the high propolis group (HP). In ovo propolis extract injection resulted in a shorter hatching time compared with the control groups. The hatchability, hatching weight and survival of newly hatched chicks were not affected by in ovo injection of propolis extract according to our results. There were no differences between the control and treatmet groups in hatchability and embryonic mortality. The results indicated that except for the PC group chicks weights were similar at hatching day, but the later stage weights of chicks were started to significantly differ from each other and propolis groups have shown higher live weights than the controls at 5th and 10th day (Plt%253B0.05). All treatment groups exhibited greater weight gain from hatch to 10 d compared to the control groups. The results indicate that in ovo feeding of broiler embryos with propolis extract may have beneficial effects on day old chick weights and early growth rate

    Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

    Get PDF
    Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

    Endüstriyel bir robot için çift görüş sistemi geliştirilmesi.

    No full text
    The aim of this thesis is to develop a stereo vision system to locate and classify objects moving on a conveyor belt. The vision system determines the locations of the objects with respect to a world coordinate system and class of the objects. In order to estimate the locations of the objects, two cameras placed at different locations are used. Image processing algorithms are employed to extract some features of the objects. These features are fed to stereo matching and classifier algorithms. The results of stereo matching algorithm are combined with the calibration parameters of the cameras to determine the object locations. Pattern classification techniques (Bayes and Nearest Neighbor classifiers) are used to classify the objects. The linear velocity of the objects is determined by using an encoder mounted to the shaft of the motor driving the conveyor belt. A robot can plan a sequence of motion to pick the object from the conveyor belt by using the output of the proposed system.M.S. - Master of Scienc

    How Decisiveness, Self-Efficacy, Curiosity and Independent and Interdependent Self-Construals Are Related to Future Hopefulness among Senior Students

    No full text
    Hope is a future-oriented reasoning that influences psychological assets of individuals. A hopeful standing towards the future can positively influence individual well-being. Different standings in terms of hopefulness may create variations in psychological assets of people. In the current study, we examined the associations of decisiveness, self-efficacy, curiosity and self-construals with hopefulness. A total of 278 senior university students were recruited for the study from Eastern Mediterranean University in Famagusta, North Cyprus. Participants filled six questionnaires; the Beck Hopelessness Scale, the Independent and Interdependent Self-Construal Scale, Multi-Domain Decisiveness Scale, Curiosity and Exploration Inventory II, the Dispositional Hope Scale and the General Self-Efficacy Scale. The data was analyzed by hierarchical multiple regression analysis on SPSS 23 software program. The results indicated that self-efficacy and decisiveness significantly predicted hopefulness, while curiosity did not predict hopefulness and only independent self-construal had the predictive effect on hopefulness. Based on these findings, the emerging adulthood nature of the study sample was discussed, and further recommendations were presented
    corecore