Tenderizing Beef with Electricity.

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USDA Beef Carcass Grades: Purpose and Application.

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USDA Beef Carcass Grades: Purpose and Application.

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Steer Temperament Influences Stress Responsiveness to Handling Typical In BeefCattle Management

Last updated: 6/1/200

Effects of feeding zilpaterol hydrochloride for twenty to forty days on carcass cutability and subprimal yield of calf-fed Holstein steers

El presente trabajo de investigación se realizó con el propósito de Determinar la relación de los estilos de aprendizaje en el rendimiento académico- área de Ingles- en estudiantes de cuarto grado de secundaria del C.P.M. "San Pedro Chanel", Sullana- Piura, 2017. Para el desarrollo de la investigación se utilizó un diseño Correlacional, No Experimental Transversal, así como una población de 1700 estudiantes del nivel secundaria y una muestra No probabilística de 36 estudiantes de cuarto grado de secundaria del aula ?B?. Para la recopilación de la información se utilizó como técnica a la encuesta y como instrumento un cuestionario con escala valorativa referido a la variable Estilos de aprendizaje y para la variables Rendimiento académico se utilizó como técnica al análisis documental y como instrumento una ficha de análisis documental. La información recopilada se registró y procesó utilizando el programa SPSS V19, a partir de lo cual se presentan los resultados en tablas, así como también se realizó el análisis correlacional a través del coeficiente de Pearson. Según los resultados obtenidos existe relación moderada entre las dimensiones estilo de aprendizaje activo y estilo de aprendizaje pragmático en el rendimiento académico en los estudiantes con un coeficiente de Pearson de (0.480 y 0.561); existe relación alta entre el estilo de aprendizaje reflexivo y el rendimiento académico en los estudiantes con un coeficiente de Pearson de (0.634) y existe relación baja entre el estilo de aprendizaje teórico y el rendimiento académico en los estudiantes con un coeficiente de Pearson de (0.382).Tesi

The Policy Dystopia Model:an interpretive analysis of tobacco industry political activity

BACKGROUND: Tobacco industry interference has been identified as the greatest obstacle to the implementation of evidence-based measures to reduce tobacco use. Understanding and addressing industry interference in public health policy-making is therefore crucial. Existing conceptualisations of corporate political activity (CPA) are embedded in a business perspective and do not attend to CPA's social and public health costs; most have not drawn on the unique resource represented by internal tobacco industry documents. Building on this literature, including systematic reviews, we develop a critically informed conceptual model of tobacco industry political activity. METHODS AND FINDINGS: We thematically analysed published papers included in two systematic reviews examining tobacco industry influence on taxation and marketing of tobacco; we included 45 of 46 papers in the former category and 20 of 48 papers in the latter (n = 65). We used a grounded theory approach to build taxonomies of "discursive" (argument-based) and "instrumental" (action-based) industry strategies and from these devised the Policy Dystopia Model, which shows that the industry, working through different constituencies, constructs a metanarrative to argue that proposed policies will lead to a dysfunctional future of policy failure and widely dispersed adverse social and economic consequences. Simultaneously, it uses diverse, interlocking insider and outsider instrumental strategies to disseminate this narrative and enhance its persuasiveness in order to secure its preferred policy outcomes. Limitations are that many papers were historical (some dating back to the 1970s) and focused on high-income regions. CONCLUSIONS: The model provides an evidence-based, accessible way of understanding diverse corporate political strategies. It should enable public health actors and officials to preempt these strategies and develop realistic assessments of the industry's claims

Regulatory feedback from nascent RNA to chromatin and transcription

Transcription and chromatin function are regulated by proteins that bind to DNA, nucleosomes or RNA polymerase II, with specific non-coding RNAs (ncRNAs) functioning to modulate their recruitment or activity. Unlike ncRNAs, nascent pre-mRNA was considered to be primarily a passive player in these processes. In this Opinion article, we describe recently identified interactions between nascent pre-mRNAs and regulatory proteins, highlight commonalities between the functions of nascent pre-mRNA and nascent ncRNA, and propose that both types of RNA have an active role in transcription and chromatin regulation

Effect of electrical stimulation on quality-indicating, palatability and histological characteristics of beef

Vita.A three-part study was conducted to determine the effect of electrical stimulation on the quality, palatability and histological characteristics of beef. Experiment 1 determined the effects of using various numbers of electrical impulses on quality and palatability traits of lightweight beef carcasses. Experiment 2 determined the effects of combining electrical stimulation and postmortem aging to achieve optimum improvement in tenderness. Experiment 3 determined the effects of electrical stimulation on the structure of postmortem beef muscle. In Experiment 1, fifty light-weight heifers were slaughtered and randomly selected sides were electrically stimulated (machine setting=100 volts, 5 amps, 50-60 cycles per second; producing a 440 volt potential difference between electrodes) within 1 hr post-exsanguination. Treatment groups for paired sides included 0 vs 25, 0 vs 50, 0 vs 75, 25 vs 50, and 50 vs 75 electrical impulses per side. When significant differences in carcass traits, tenderness and overall palatability were observed between control and treated sides, advantages were always in favor of electrically stimulated sides. The most consistent improvements elicited by electrical stimulation were in USDA lean maturity score (more youthful), muscle color (brighter), incidence of "heat-ring" (less frequent; less severe), shear force (more tender) and sensory panel ratings (more tender; less organoleptically-detectable connective tissue; more desirable overall palatability) . Use of 75, rather than 25 or 50, impulses slightly reduced the incidence and severity of "heat-ring"; however, there was very little evidence that use of more than 25 impulses would materially enhance the response in palatability achieved via electrical stimulation.