Making the grade: Do teacher-created grading systems result in disparate outcomes for high school students?

The lack of formal grading policies within individual schools and school districts results in differential grading across classrooms. In many secondary schools, an individual course may be taught by multiple teachers. This study aimed to determine if the existence of differential grading results in disparate outcomes for students based on their assigned teacher. Data about students (demographics, teacher-issued grades, and standardized test scores) was collected from four core content classes at one high school. Regression analysis was used to isolate the impact of students’ assigned teacher on their course grade after controlling for demographics and academic performance as measured by the standardized test associated with each subject. The findings showed that the teacher factor was significant for all four courses. Given the importance of grades to students’ academic trajectories, these findings should be of concern to all stakeholders, from students and parents to classroom teachers and school administrators

Feeding the Dry Cow to Avoid Parturient Paresis

In the past, dairy producers have regarded the non-lactating or dry period as a time when the dairy cow recuperates from the stresses of her previous lactation and prepares herself for parturition. This kind of thinking usually results in mismanagement of the dry cow since she is seen as an economic drain on the farm. Today this image is changing and through years of research and education the dry period is now considered a vital stage of preparation for the next lactation period. The dry cow should be managed and fed to prepare her for the transition from the low metabolic demand needed during the dry period to the higher metabolic demand of early lactation. If cows are not prepared properly for this transition, periparturient diseases, primarily in the form of metabolic problems, are inevitably going to occur. These problems include: milk fever, retained placenta, dystocia, uterine prolapse, ketosis, fatty liver syndrome, and displaced abomasum

Sustainable development of smallholder crop-livestock farming in developing countries

Meeting the growing demand for animal-sourced food, prompted by population growth and increases in average per-capita income in low-income countries, is a major challenge. Yet, it also presents significant potential for agricultural growth, economic development, and reduction of poverty in rural areas. The main constraints to livestock producers taking advantage of growing markets include; lack of forage and feed gaps, communal land tenure, limited access to land and water resources, weak institutions, poor infrastructure and environmental degradation. To improve rural livelihood and food security in smallholder crop-livestock farming systems, concurrent work is required to address issues regarding efficiency of production, risk within systems and development of whole value chain systems. This paper provides a review of several forage basedstudies in tropical and non-tropical dry areas of the developing countries. A central tenet of this paper is that forages have an essential role in agricultural productivity, environmental sustainability and livestock nutrition in smallholder mixed farming systems

The Evolution of Professional Nursing Culture in Italy: Metaphors and Paradoxes

We explored the perceptions of Italian nurses regarding their developing culture as a health profession. We sought to understand the ongoing evolution of the nursing profession and the changes that were central to it becoming an intellectual discipline on par with the other health professions in Italy. In 2010, the Regulatory Board of Nursing established a center of excellence to build evidence-based practice, advocate for interdisciplinary health care, and champion health profession reforms for nursing. In this study, focus groups—involving 66 nurse participants from various educational, clinical, and administrative backgrounds—were utilized to better ascertain how the profession has changed. Six themes, three of them metaphors—“vortex,” “leopard spots,” and “deductive jungle”—explain nurses’ experiences of professional change in Italy between 2001 and 2011 and the multiple dimensions that characterize their professional identity and autonomy

Providing a Helping Hand: Metabolic Regulation of T Follicular Helper Cells and Their Association With Disease.

T follicular helper (Tfh) cells provide support to B cells upon arrival in the germinal center, and thus are critical for the generation of a robust adaptive immune response. Tfh express specific transcription factors and cellular receptors including Bcl6, CXCR5, PD-1, and ICOS, which are critical for homing and overall function. Generally, the induction of an immune response is tightly regulated. However, deviation during this process can result in harmful autoimmunity or the inability to successfully clear pathogens. Recently, it has been shown that Tfh differentiation, activation, and proliferation may be linked with the cellular metabolic state. In this review we will highlight recent discoveries in Tfh differentiation and explore how these cells contribute to functional immunity in disease, including autoimmune-related disorders, cancer, and of particular emphasis, during infection

Free Vibrations of Unsymmetrically Laminated Anisotropic Plates with Clamped Edges

A linear analysis is presented for determining the natural frequen cies of vibration of laminated anisotropic rectangular plates. The plate may consist of an arbitrary number of thin orthotropic layers, the major material-symmetry axis of each layer oriented arbitrarily with respect to the longer plate edge. An approximate solution is obtained by the Rayleigh-Ritz energy method. Numerical results are presented for fully clamped boundary conditions and compared with experimental results for symmetrically and unsymmetrically laminated plates.Yeshttps://us.sagepub.com/en-us/nam/manuscript-submission-guideline

Herbaceous Tropical Legume Integration into Small-Holder Crop-Livestock Systems in Eastern Indonesia: Results of 10-Years of Multi-Disciplinary Systems Research

Integration a forage legume into crop-livestock systems of Eastern Indonesia was tested to establish the capacity to improve nitrogen supply and yields of staple cereal crops (maize and rice) and allow for intensification of beef production to ultimately increase farm income and alleviate rural poverty in the region. Species evaluation sites across a diversity of environments showed Clitoria ternatea (butterfly pea) to be the most resilient and adaptable forage legume for use in association with cropping systems. Crop rotation experiments demonstrated that legumes grown in rotation with maize or rice can increase grain yields by 50% where legume was cut and removed, and by 90% where legume biomass was retained – the legume providing the equivalent of 100-150 kg of urea fertiliser. Forage establishment and cutting management were shown to be critical to maximising legume productivity but labour inputs required are important constraints. Lower-labour options can be used effectively without dramatically compromising productivity. Providing legumes as supplements to cattle have been shown to have significant benefits for livestock productivity in various production systems; preventing liveweight losses of reproductive cows during the dry season, doubling calf growth rates and halving calf mortality, and increasing growth rates of growing cattle by 0.3-0.5 kg LW/d. Whole-farm bioeconomic modelling and participatory on-farm evaluation has found that livestock-oriented farmers with available land resources will benefit most from forage legumes with potential increases of farm income of up to 30%. Local seed production is critical for ongoing use of herbaceous forage legumes, and our research has refined locally relevant recommendations for agronomy for seed production methods and processing. Our research has confirmed that herbaceous forage legumes can be integrated into cropping systems to improve crop yields, livestock production and livelihoods of small-holder farmers in East Nusa Tenggara, Indonesia

Evaluation of LiNES : a new measure of trauma, negative affect, and relationship insecurity over the life span in persons with FND

Objective: The authors evaluated potential predisposing vulnerabilities and perpetuating factors among individuals with functional neurological disorder (FND) by using the novel Lifespan Negative Experiences Scale (LiNES), which assesses retrospective self-report of interpersonal trauma, negative affect, and relationship insecurity at three developmental stages: childhood, adolescence, and adulthood. Methods: The LiNES, Childhood Abuse and Trauma Scale (CATS), Relationship Scales Questionnaire (RSQ), and Positive and Negative Affect Schedule (PANAS) were administered to 71 individuals with FND. The reliability and validity of LiNES were examined by correlation with the other measures. FND patients’ responses on LiNES were compared with those of 170 healthy control subjects. Results: LiNES scores in the FND group were internally consistent and correlated highly with CATS, RSQ, and PANAS scores. At each developmental stage, LiNES trauma scores were higher among patients with FND, compared with control subjects. The FND subgroup, which comprised patients who also had nonepileptic attack disorder, had higher trauma scores, compared with the FND-only subgroup. Compared with control subjects, patients with FND reported greater negative affect and relationship insecurity in adulthood. Lifetime LiNES scores for interpersonal trauma and relationship insecurity predicted FND group classification with >80% accuracy. Conclusions: This study provides further support for the links between FND and trauma, negative affect, and insecure attachment. Recognition of these factors is likely to be important for treatment and stratification of important subpopulations in research. These findings provide new insights into the association between the timing of negative experiences and their effect, with LiNES emerging as a potentially useful measure for patients presenting with FND