Processo de transição na criação animal agroecológica no assentamento de reforma agrária:Filhos de Sepé / Viamão - RS: manejo e sanidade

TCC (graduação em Agronomia) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, 20072014-07-02T19:26:26

Improving Pneumococcal Vaccination Rates in Jefferson Hospital Ambulatory Practice Patients

AIM: To improve the pneumococcal vaccination initiation rates in patients 65 years and older in Jefferson Hospital Ambulatory Practice (JHAP) to the institutional quality measure goal of 80% over a 4 month period from January to May of 2017.https://jdc.jefferson.edu/patientsafetyposters/1031/thumbnail.jp

Modifying the McKenzie Stretching Theory for Sedimentary Basins to Account for the Depth Dependence of Sediment Density

The McKenzie stretching theory is a simple model for the evolution of sedimentary basins such as basins underlying most continental shelves. McKenzie’s model explains basin subsidence as the isostatic response to and subsequent cooling of the lithosphere. In addition to the stretching factor, and the initial thickness of the continental crust, the history of subsidence also depends on the average density of the basin fill (e.g., water or sediment). McKenzie’s model requires prior specification of fill density, but it really depends only on the vertical average density of fill. In reality, sediment density varies with depth as it compacts in response to burial. To simulate a varying density, a simple mathematical model for density based on changes in porosity is proposed to be inserted into the McKenzie model. Only after the testing to be sure that the new model matches McKenzie’s original findings can the preliminary investigation into the case study commence so as to compare the newly created model with trusted observations. The model we adopt to characterize the density of sedimentary fill is simplistic: we assume fill density is purely a function of depth. But it is a more general formula than McKenzie’s, and provides an approximate basis for accommodating spatial (and temporal) variation in sediment density.No embarg

Methane resaturation in Barnett Formation core plugs and determination of post-coring gas loss

Understanding the physiochemical mechanisms that control the loss of gas during coring processes is critical to accurately determining gas-in-place (GIP) resource assessments of unconventional shale-gas plays. Our study uses an experimental approach, utilizing methane (CH₄) adsorption isotherms and degassing curves of methane-resaturated Barnett Formation core plugs, to determine the amount of lost-gas based on mass-balance analysis at different CH₄ re-saturation pressures and varied exposure times. Several readily available empirical methods for estimating lost-gas were evaluated, quantified, and compared with the mass balance–derived lost-gas values in our experiments. A CH₄ isotherm measurement on 3/8-inch Barnett Formation core plugs was performed at 35.4°C; the amount of gas adsorbed was then quantified and fitted to the modified Langmuir equation to determine the Langmuir maximum, Langmuir constant, and adsorbed gas-phase density. Two sets of CH₄ gas-resaturation and degassing measurements, one varying saturation pressures and the other varying exposure times, were performed on 3/8-inch Barnett Formation core-plugs at an isothermal temperature of 35.4°C. Degassing curves, the plot of the released gas yield versus the square root of degassing time, display three stages that correspond to different gas-releasing mechanisms. The rapid increase of released gas yield at the beginning of degassing represents that nonlinear gas expansion is dominant and that degassing evolves into a linear desorption-dominated phase over time. Experimentally derived values for lost gas were determined by subtracting the sum of the emitted and retained gas at the peak of the degassing curve from the amount of gas initially charged into the samples at equilibrated resaturation pressure. Lost gas varies linearly with increasing gas-resaturation pressure and nonlinearly by a greater magnitude with increasing exposure time, indicating that lost gas is more sensitive to exposure time. The uncertainty evaluation of lost gas determined by three empirical methods was conducted by direct comparison with mass-balance-derived lost-gas values from our experiment. Nonlinear least-squares extrapolation overestimates, and both linear extrapolation and polynomial equation fitting underestimate, mass-balance lost-gas control points. Among the three empirical methods, the polynomial-fitted lost-gas values most closely agree with mass-balance lost gas, revealing that polynomial fitting to degassing curves is a viable way to accurately estimate lost gas and, more importantly, to estimate GIP values with up to 85% accuracy.Geological Science

Formative research and the achievement of skills based on undergraduate theses in university higher education

The aim of this research was to determinate the relationship between formative research and the achievement of skills based on undergraduate theses in university higher education, considering three dimensions: student perception in the investigative endeavor, the role of the instructor and the institutional support in the process of building research skills. The methodology corresponds to a quantitative approach, and a survey technique was applied. A 21-item questionnaire card was designed, with a Likert scale that ranged from 1 to 5 for the formative research variable, and 30-item card with a Likert scale from 0 to 4 for the attainment of skills based on the thesis review. The instrument was validated by expert opinion, reaching an average of 85%. The reliability of the questionnaires was 0.92 and 0.95, respectively, according to the Cronbach’s alpha method. The population consisted of 1448 theses published in the institutional repository from 2016 to 2020, and the sample was made up of 110 theses from 11 colleges, with a 95% level of confidence. The results indicate that the perception of the achievement of research skills, instructor support during the research process and institutional support are “positive”; likewise, review of the theses reached a “successful” level. It is concluded that there is a direct relationship between formative research and the achievement of competencesPeer Reviewe

Assessment of animal-based pig welfare outcomes on farm and at the abattoir:a case study

The study assessed the prevalence of animal-based pig welfare outcomes on one Chilean farm and one abattoir. A total of 198 pens of slaughter pigs (9,049 pigs) were observed on farm and 54 batches (8,843 pigs) were observed at the abattoir. All assessments were conducted from outside the pen on farm and from outside the corridor where pigs were unloaded from the truck at the abattoir. Batch size and number of pigs with ear, tail and skin lesions, hernias, rectal prolapse, bursitis, and lameness were recorded. Data were analyzed using generalized linear mixed models. There was a large variation among pens on farm and among batches at the abattoir for all outcomes. Bursitis was the most prevalent outcome recorded in both locations, followed by ear lesions recorded on farm and by tail lesions recorded at the abattoir. Ear lesions' prevalence was higher on farm (P < 0.001), while tail lesions, hernia, and bursitis prevalence were higher at the abattoir (P < 0.001). Ear lesions' prevalence on farm was higher in female and mixed-sex groups than in male groups (P < 0.01), but male groups tended to have a higher tail lesions' prevalence (P < 0.1). The results show a difference in welfare outcomes, suggesting that assessment of outcomes on farm could complement ante-mortem inspections at the abattoir. However, as the same animals were not inspected in the two locations and there is the possibility of a seasonal influence on the results, the findings should be interpreted with caution and further research is required

Desarrollo e implementación de una aplicación que simulen entornos de trabajo y distribuya de manera eficiente las fuentes de iluminación

En este trabajo de tesis se pretende estudiar el Modelo de Iluminación de OpenGL para su posterior aplicación en la simulación de ambientes de trabajo iluminados gracias a la distribución de luminarias que se obtiene por el Método de las Cavidades Zonales. De manera que, las lineas de conocimiento sobre la Iluminación y el Color y los Gráficos Computarizados Tridimensionales se unen para dar como resultado un aplicativo que ayude en la tarea de hacer cumplir con los Niveles de Iluminación recomendados por las Normas Nacionales e Internacionales y combatir el Calentamiento Global al hacer un uso eficiente de la energía electrica. ZonalCavs es el producto de este trabajo, escrito en C++, su interfaz gráfica en Qt, y el encargado del renderizado 3D es OpenG

Meat Consumers’ Opinion Regarding Unhealthy Pigs: Should They Be Treated with Antibiotics or Euthanized on Farm?

The aim of this study was to investigate the opinions of meat consumers (n = 1780) on on-farm management of unhealthy pigs, whether support for treatment with antibiotics varies according with chance of recovery, and the effect of knowledge on the use of antibiotics on these opinions. Most participants believed that the use of antibiotics was the best solution for unhealthy pigs, and this was associated with a low level of knowledge about antibiotics. Increasing the probability of recovery after treatment increased support for treating pigs with antibiotics. However, the majority of participants rejected the consumption of meat from animals housed in “hospital pens”. After price, concern with food safety was the second main factor that influenced participants’ choice when buying meat. Support for the use of antibiotics to deal with unhealthy pigs in “hospital pens”, as well as for consumption of the meat from these animals, was higher among participants involved in agriculture. This shows that consumers are unaware of the potential negative repercussions for animal welfare associated with banning or reducing the use of antibiotics in livestock production, which is an important concern for the industry.info:eu-repo/semantics/publishedVersio

Do Different Breeds of Dairy Cow Differ in Their Ability to Digest Perennial Ryegrass?

Grazed grass is the cheapest feed source available for ruminant production systems in temperate climates (Finnernan et al. 2010) accounting for 70% and 90% of the diet of dairy cows in Ireland and New Zealand, respectively. Successful operation of grass-based dairy systems is based on achieving large intakes of high quality grass and efficiently converting it into high value milk solids (Prendiville et al. 2010). Prendiville et al. (2009) identified production efficiency differences between Holstein Friesian (HF) and Jersey (J) cows. They found that J had higher milk solids output per 100 kg bodyweight than HF. The aim of this study was to identify if HF, J and crossbred (J×HF) cows differ in their ability to digest perennial ryegrass

Interplay between productive traits, the social rank, and the cow’s stability in the order of entrance to the milking parlour

The aim of this study was to investigate whether social rank (SR) and stability in the order of entrance to the milking parlour are associated with production traits. The study was conducted on a dairy farm where cows (n = 215) were managed in three groups according to lactation stage (group 1: 78 cows, 0–100 days in milk (DIM); group 2: 65 cows, 101–200 DIM and group 3: 72 cows, >200 DIM). SR was calculated from observations made from agonistic behaviour performed at the water troughs and feed bunks of each pen (n = 3). The animals were classified into three levels of dominance based on at least five clear interactions, resulting in: 61 dominant, 75 intermediate and 69 subordinate cows based on SR. Stability in the order of entry was estimated as the standard deviation of the entry position. SR was weakly correlated with milk yield, urea and protein content in milk. The results showed that stable cows had higher milk production and entered the milking parlour after the non-stable animals. Stability in the order of entry to the milking parlour was not affected by SR. Overall, the use of milking facilities appears to be associated with production traits rather than SR