492 research outputs found

    Teacher Evaluation as a Function of the Students' Sex and Achievement Level

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    This study was designed to determine how the ratingsof a college teacher were influenced by the sex and achievement levelof the students. Sixty-seven male and 73 female undergraduates wereused in the main analyses, with an additional 72 subjects insubsidiary analyses. During the first week of the course subjectswere asked to rate themselves, father, mother,and the instructor inthe course on the Michill Adjective Rating Scale (MAILS) whichmeasures four relatively independent factors (unhappiness,extraversion, self-assertiveness, and productive persistence). Theyalso rated themselves and the instructor on the same scale near theend of the course, rated the instructor on the Rating Scale forTeachers pm consisting of 17 itmes dealing with aspects of ateacher's job and personality, and took five teacher-made achievementtests during the semester. Students were separated into high and lowachievement levels, using the median of the cutoff. Two-waymultivariate analysis showed significant differences in teacherratings on MARS and RST factors between the sexes and between highand low achievement level subjects. Also, significant sex and achievement level interaction was found for the RST data

    Numerical study of pneumatic conveying of powders

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    The dense phase mode may be advantageous over the dilute phase mode, for some pneumatic conveying problems, because it causes less erosion of the pipeline, less attrition of the material, requires less dust collection and is effective even for smaller pipe diameters. The objective of this study is to numerically determine the parameters that govern the formation slugs in dense phase conveying. The distributed Lagrange multiplier/fictitious domain method (Glowinski et al. 1998 and Singh et al. 2000) is used to perform direct simulations of the motion of solid and gas phases in pipes with rectangular cross-sections. In this approach the exact governing equations are solved at scales finer than the particle size and no ad hoc two-phase flow model is used. Simulations are started by placing a particle slug in the flow. Several cases were simulated to understand the role of gravity, the particle density and the strength of applied pressure gradient in the formation and destruction of slugs. When the applied pressure gradient is increased the slugs become more compact, their velocity in the flow direction increases and they remain intact for longer time durations. A reduction in the pressure gradient, on the other hand, causes the particle velocity to decrease and consequently they sediment and simply roll on the bottom. The reduced gravity causes the slug to disintegrate and the center of mass of the slug moves upwards against gravity. The increased viscosity of the fluid, for a fixed pressure gradient, causes the particle to settle on the bottom of the channel under gravity

    Improving Utilization of the Family History in the Electronic Health Record

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    The purpose of this article is to provide an overview of Family History in the Electronic Health Record and to identify opportunities to advance the contributions of nurses in obtaining, updating and assessing family history in order to improve the health of all individuals and populations.; The article presents an overview of the obstacles to charting Family History within the Electronic Health Record and recommendations for using specific Family History tools and core Family History data sets.; Opportunities to advance nursing contributions in obtaining, updating, and assessing family history in order to improve the health of all individuals were identified. These opportunities are focused within the area of promoting the importance of communication within families and between healthcare providers to obtain, document, and update family histories.; Nurses can increase awareness of existing resources that can guide collection of a comprehensive and accurate family history and facilitate family discussions. In this paper, opportunities to advance nursing contributions in obtaining, updating, and assessing family history in order to improve the health of all individuals were identified.; Aligned with the clinical preparation of nurses, family health should be used routinely by nurses for risk assessment and to help inform patient and family members on screening, health promotion, and disease prevention. The quality of family health information is critical in order to leverage the use of genomic healthcare information and derive new knowledge about disease biology, treatment efficacy, and drug safety. These actionable steps need to be performed in the context of promoting evidence-based applications of family history that will be essential for implementing personalized genomic healthcare approaches and disease prevention efforts.; Family health history is one of the most important tools for identifying the risk of developing rare and chronic conditions, including cardiovascular disease, cancer, and diabetes, and represents an integration of disease risk from genetic, environmental, and behavioral/lifestyle factors. In fact, family history has long been recognized as a strong independent risk factor for disease and is the current best practice used in clinical practice to guide risk assessment

    İki tarla bitkisinde Euphorbia hirta ve PEG 6000 ile oluşan engelleyici etkilerin karşılaştırması üzerine bir ön çalışma

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    Euphorbia hirta is commonly found in all tropical regions of the world, as invasive weed with an adverse effect on other plants. The current study features two important aspects: (i), Effects of E. hirta roots exudates (0, 50, 75 and 100% concentrations) (ii), Influence of PEG 6000 “Polyethylene glycol” (8, 16 and 40 g/l concentrations) on germination and growth criterion of Cicer arietinum (Chick pea) and Phaseolus vulgaris (French bean). In this regard osmotic potential of all the solutions have been balanced. It is observed that the root leachates of spurge weed significantly (p < 0.05) affected the germination rate while PEG has no positive or negative effect on growth activity. The growth parameters in both crops have altered by spurge weed and PEG solutions while highest inhibition was recorded in root length root exudates (3.5 cm) of C. arietinum which is in contrast to PEG (11.97 cm), this might be due to the presence of allelochemicals. The prescribed treatments also raised their pH values, where highest pH (7.9) obtained from 100% spurge weed induction which is relatively a stronger basic nature rather than neutral control samples. Comparative studies of both test crops shows that C. arietinum has appeared to be more influential than P. vulgaris. Two-way ANOVA has produced a significant difference (p < 0.05) between the effects of both treatments on germination and growth of test crops while within group (concentrations of each treatment) are weakly significant (p < 0.1) to each other. This would rather intimates that the inhibition has strongly emerged as an allelopathic response on Cicer arietinum and Phaseolus vulgaris plants by the induction of spurge weed (Euphorbia hirta) root exudates.Euphorbia hirta, diğer bitkiler üzerinde olumsuz etkiye sahip istilacı bir yabancı ot türü olarak dünyanın bütün tropikal bölgelerinde yaygın olarak bulunmaktadır. Yürütülen çalışmada, Phaseolus vulgaris L. (Fasulye) ve Cicer arietinum L. (Nohut) çimlenme ve büyüme kriteri üzerine (i) E. hirta'nın kök salgılarının etkileri (0, 50, 75 ve %100 konsantrasyon), (ii) PEG 6000'nin (8, 16 ve 40 g/l konsantrasyon) “Polietilen glikol” etkisi olmak üzere iki önemli husus bulunmaktadır. Bu bakımdan bütün solüsyonların osmotik potansiyeli dengelenmiştir. Sütleğen bitkisinin kök salgılarının çimlenme oranını önemli ölçüde (p <0.05) etkilediği, PEG'in ise büyüme aktivitesi üzerinde olumlu veya olumsuz bir etkisinin olmadığı gözlemlenmiştir. PEG solüsyonları ve sütleğen bitkisi her iki üründeki büyüme parametrelerini değiştirmiş, C. arietinum'un kök uzunluğunda PEG (11.97 cm)'in aksine en yüksek oranda inhibisyon kök salgıları uygulamasında (3.5 cm) kaydedilmiştir. Bu durum alelokimyasalların varlığından kaynaklanmış olabilir. En yüksek pH (7.9) nötr kontrol örneklerine göre daha güçlü bir bazik yapısı olan %100 sütleğen otu indüksiyonundan elde edilmiş, yapılan uygulamalar ayrıca pH değerlerini de yükseltmiştir. Çalışmadaki her iki test bitkisi karşılaştırıldığında C. arietinum'un P. vulgaris'ten daha fazla etkilendiği görülmüştür. İki yönlü varyans analizine göre (Two-way ANOVA) her iki uygulamanın test bitkilerinin çimlenme ve büyümesi üzerindeki etkileri grup içerisinde (her bir uygulama konsantrasyonları) az oranda önemli olmasına rağmen (p <0.1) her iki uygulama arasında önemli bir fark (p <0.05) oluşturmuştur. Bu inhibisyonun sütleğen bitkisinin (Euphorbia hirta) kök salgılarının Cicer arietinum ve Phaseolus vulgaris bitkileri üzerine alelopatik etkisine karşı güçlü bir yanıt olarak ortaya çıktığı düşünülmektedir

    1,4-Bis(pyrimidin-2-yl­sulfanyl)­butane

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    The –SCH2CH2CH2CH2S– portion of the title compound, C12H14N2S2, adopts an extended zigzag conformation. The angles at the tetra­hedral carbon atoms are marginally increased [113.63 (12)° and 111.38 (17)° for S—C—C and C—C—C respectively] from the idealized tetra­hedral angle. The mol­ecule lies on an inversion center located at the mid-point of the butyl chain. In the crystal, there is a π–π stacking inter­action between inversion-related pyrimidine rings with mean inter­planar spacing of 3.494 (2) Å

    Extraction and Partial Characterization of Collagen from Different Animal Skins

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    Collagen is a wonder triple helix fibrous protein. Basically, it connects and supports other bodily tissues, such as skin, bone, tendons, muscles and cartilage. In fact, it makes up about 25% of the total amount of proteins. Collagen possesses great tensile strength. In the present investigation, three methods of collagen extraction were employed. Out of which the method of George and Chandrakasan (1996) proved to be a better method for collagen extraction in chicken and human skins. Regarding Goat and Buffalo skins, collagen was extracted using TCA method wherein the extracted fibrous protein got hydrolyzed, getting denatured therefore, a definite band pattern was not obtained. By comparing the electrophoretic profile of various animal skins, a definite band pattern can be obtained which will indicate differences in collagen structure thereby facilitating species and generic differentiation

    British South Asian male nurses' views on the barriers and enablers to entering and progressing in nursing careers

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    To ascertain British South Asian male nurses' views on the barriers and enablers to entering and progressing in nursing education and careers. There is a shortage of men from Black, Asian and Minority Ethnic groups in the National Health Service nursing workforce. There is a dearth of evidence on the views of British south Asian men on this subject. A qualitative interpretative intersectional approach was used to carry out one to one interviews (n=5) with British South Asian male nurses using a semi-structured topic guide. Interviews took place between July 2018 and February 2019, across England. A Framework Analysis approach was used to analyse the interview transcripts. The main themes emerging as barriers were: poor pay and conditions, negative immediate, extended family, community views and a lack of knowledge and awareness of the nursing profession. The main themes emerging as enablers were: personal circumstances (including role models) and ethnicity (including the role of religion and masculinity). Findings suggest that the intersection between ethnicity and gender presents as an important enabler, as well as inhibitor, for British South Asian men. Nursing careers and salient barriers exist at a systemic level and include institutional racism. Review policies and practice on unconscious bias and institutional racism in the recruitment, retention and progression of British South Asian men. Provide continuous professional development including mentoring support to help career progression for these men. Develop culturally specific interventions to reduce the stigma associated with the nursing profession in the British South Asian community. Consider places of worship as venues for delivery of these interventions when promoting nursing. AIM BACKGROUND METHODS RESULTS CONCLUSION IMPLICATIONS FOR NURSING MANAGEMENTopen access articl
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