Model Matematika Kurva Produksi Telur Ayam Broiler Breeder Parent Stock

Produksi telur membentuk suatu kurva dengan model matematika tertentu. Penelitian ini bertujuan untuk mendapatkan model matematika terbaik untuk menggambarkan  kurva produksi telur ayam broiler breeder parent stock Cobb 500 umur 24-45 minggu. Model matematika yang diuji dalam penelitian ini ada empat, yaitu model Mc Millan, model Yang, model Logistik, dan model Adams-Bell. Model Adams-Bell dengan rumus  memiliki kecocokan yang  paling baik dengan koefisien determinasi (R2) = 0,9998, koefisien korelasi (r) = 0,999, dan galat baku (SE) = 1,060. Dengan menggunakan model Adams-Bell ini, dapat dibuat suatu dugaan kurva produksi telur broiler breeder parent stock umur 24-45 minggu.Kata Kunci:   Kurva Produksi Telur, Ayam Broiler Breeder Parent Stock   

Increasing frailty is associated with higher prevalence and reduced recognition of delirium in older hospitalised inpatients: results of a multi-centre study

Purpose Delirium is a neuropsychiatric disorder delineated by an acute change in cognition, attention, and consciousness. It is common, particularly in older adults, but poorly recognised. Frailty is the accumulation of deficits conferring an increased risk of adverse outcomes. We set out to determine how severity of frailty, as measured using the CFS, affected delirium rates, and recognition in hospitalised older people in the United Kingdom. Methods Adults over 65 years were included in an observational multi-centre audit across UK hospitals, two prospective rounds, and one retrospective note review. Clinical Frailty Scale (CFS), delirium status, and 30-day outcomes were recorded. Results The overall prevalence of delirium was 16.3% (483). Patients with delirium were more frail than patients without delirium (median CFS 6 vs 4). The risk of delirium was greater with increasing frailty [OR 2.9 (1.8–4.6) in CFS 4 vs 1–3; OR 12.4 (6.2–24.5) in CFS 8 vs 1–3]. Higher CFS was associated with reduced recognition of delirium (OR of 0.7 (0.3–1.9) in CFS 4 compared to 0.2 (0.1–0.7) in CFS 8). These risks were both independent of age and dementia. Conclusion We have demonstrated an incremental increase in risk of delirium with increasing frailty. This has important clinical implications, suggesting that frailty may provide a more nuanced measure of vulnerability to delirium and poor outcomes. However, the most frail patients are least likely to have their delirium diagnosed and there is a significant lack of research into the underlying pathophysiology of both of these common geriatric syndromes

How does the bilingual experience sculpt the brain?

The ability to speak two languages often marvels monolinguals, although bilinguals report no difficulties in achieving this feat. Here, we examine how learning and using two languages affect language acquisition and processing as well as various aspects of cognition. We do so by addressing three main questions. First, how do infants who are exposed to two languages acquire them without apparent difficulty? Second, how does language processing differ between monolingual and bilingual adults? Last, what are the collateral effects of bilingualism on the executive control system across the lifespan? Research in all three areas has not only provided some fascinating insights into bilingualism but also revealed new issues related to brain plasticity and language learning.The authors are supported by grants from the European Research Council under the European Community's Seventh Framework Programme (FP7/2007-2013): ERC grant agreement n° 323961; Cooperation grant agreement nº 613465 - AThEME), the Spanish Ministerio de Economía y Competitividad (PSI2011-23033; PSI2012-34071; Consolider-Ingenio2010-CDS-2007-00012) and the Catalan Government (SGR 2009-1521)