Miracle-dz/UniFAR-FTUs huggingface dataset:
Leveraging Correlates of Innovative Teacher Behaviour for Educational Development in Developing Societies

The public system of elementary education in developing countries is often criticized for its poor performance, but a better understanding of the innovative teachers in this system who achieve their educational goals might offer insights for teacher development. What are the specific individual factors associated with the performance of such teachers? We draw on on-going work to identify the correlates of innovative work performance of government school teachers. It was hypothesized that intrinsic motivation and creative self-efficacy were high correlates of workplace innovative performance, openness to experience and proactivity, perceived job complexity and learning orientation of teachers were moderate correlates, and demographic factors were weak correlates. Three hundred and forty seven teachers were selected by systematic circular random sampling from 5650 teachers whose work had been peer-rated for innovativeness and performance. Intrinsic motivation of teachers was found to be the most significant correlate of innovative performance, along with qualification in a teacher eligibility test conducted by the government. All other factors did not seem to be critical. One implication for large-scale teacher training is the design of a model of professional development which relies on the principle of learning from the motivated teachers—those who have realized their educational goals, regardless of the constraints that are a feature of the more general educational context. This is best done through decentralized peer-driven teacher networks that seek to highlight the work of the innovative teachers as motivational triggers for the wider teaching community.
Nutritive Evaluation of Some Fodder Tree Species during the Dry Season in Central Sudan

The potential nutritive value was studied on leaves of seven fodder trees in Central Sudan during dry season at two distinct periods, the early dry and the late. The chemical composition, mineral concentration, in vitro organic matter digestibility (IVOMD), in situ OM or nitrogen degradability and estimated metabolizable energy showed a wide variation among fodder tree species and between different periods of the dry season. Crude protein (CP) ranged from 285 to 197 g/kg DM at early dry season, with a significant reduction in late dry season. Ziziphus spina-christi and Balanites aegyptiaca showed the least reduction in CP content. The NDF, ADF and lignin were about 200, 160 and 19 g/kg DM, respectively at the early period, and significantly increased at the late period of the dry season, except for lignin of Z. spina-christi. For mineral concentration, all fodder tree leaves were rich in calcium but poor in phosphorus. In situ OM degradability significantly decreased at the late period of dry season, but values remained as high as over 600 g/kg OM. At both periods, Z. spina-christi showed the highest value, while the lowest was recorded in Acacia seyal. The IVOMD showed a similar trend to those of in situ OM degradability, except for A. seyal. The nitrogen degradability was highest in B. aegyptiaca and lowest in Z. spina-christi at both periods. A significant and positive correlation had existed between CP and IVOMD or in situ OM degradability (r=0.68, p<0.05; r=0.77, p<0.05, respectively). Also, a significant but negative correlation was found between condensed tannins and nitrogen degradability (r=-0.87, p<0.01). Results demonstrated that Z. spina-christi potentially has a good nutritive value as dry season feed or supplement, while A. seyal tends to be less promising. A. nubica and B. aegyptiaca may be a useful source for degradable protein, even though it may have a limited supply of energy to animals. A. tortilis, A. mellifera and A. ehrenbergiana may have potential value for a supplementation of energy or protein, if they were harvested in the early dry season or in wet season as preserved feed. It is highly recommended to supplement with an appropriate amount of phosphorus when these fodder trees were used. (Asian-Aust. J. Anim. Sci. 2002. Vol 15, No. 6 : 844-850)
Instrumental variables, local instrumental variables and control functions

We consider the identification of the average treatment effect in models with continuous endogenous variables whose impact is heterogeneous. We derive a testable restriction that allows us to assess the degree of unobserved heterogeneity. Our analysis uses assumptions relating to the Local Instrumental Variables (LIV) approach and the control function approach.
Site-directed mutagenesis of key amino acids in the active site of amylosucrase from Neisseria polysaccharea

, M. , Site-directed mutage-nesis of key amino acids in the active site of amylosucrase from Neisseriapolysaccharea. Biologia, Bratislava, 57/Suppl. 11: 119|128, 2002; ISSN0006-3088.Amylosucrase from Neisseria polysaccharea (AS) is a glucosyltransferase fromfamily 13 of the glycoside hydrolases. In this family, AS shows an unusualspeci city for sucrose, which is the best substrate for the enzyme. AS syn-thesises, from this high-energy substrate, an amylose-like polymer. In addi-tion, it catalyses the transfer of glucose units from sucrose onto acceptormolecules like glucose, maltooligosaccharides or glycogen. Finally, it cataly-ses the disproportionation of maltooligosaccharides. A structural analysis of amutated AS complexed with sucrose led to a detailed description of the activesite and of the interactions between sucrose and AS at subsites −1and+1.Site-directed mutagenesis experiments con rmed the essential role of residuesalways conserved in the -amylase family. The nucleophile Asp286 and thegeneral acid-base catalyst Glu328 are identi ed unequivocally. The conservedresidues Asp393, His187, His 392, Arg284 and the stacking residues Tyr147and Phe250 are critical for the enzymatic activity. These results support, forAS, an -retaining mechanism via a double-displacement, similar to that de-scribed for -amylases. In addition, the salt bridge formed by Asp144 andArg509 is essential for the architecture of the active site and consequentlyfor the sucrose speci city. Finally, Asp394 and Arg446 which interact withthe fructosyl ring are not essential for activity towards sucrose but could becrucial for the binding of acceptor molecules.Key words: amylosucrase, sucrose, active site, -amylase, site-directed muta-genesis, substrate speci city
Sirt 1 as a New Therapeutic Target in Metabolic and Age-Related Diseases

Sirt1 among the mammalian sirtuins has generated intense scientific interest in recent years, mainly because of its effects on longevity, metabolism, and other aging-related processes. Via nicotinamide adenine dinucleotide (NAD)-dependent protein deacetylation, Sirt1 can regulate important metabolic regulators. Sirt1 is involved in insulin secretion in the pancreas, fatty acid oxidation in liver and skeletal muscle, hepatic gluconeogenesis during fasting, the suppression of fat storage in white adipose tissue, and the enhancement of insulin sensitivity in skeletal muscle. It also communicates with AMP-activated protein kinase (AMPK). Resveratrol, a prototype of Sirt1 activator, can induce similar changes reminiscent of caloric restriction in insulin-resistant obese rodent models, although clinical studies are still limited. Intensive research efforts are now targeting Sirt1 for pharmacologic interventions in aging and age-related metabolic and degenerative disorders.
A MODELICA PACKAGE FOR BUILDING-TO-ELECTRICAL GRID INTEGRATION

This paper presents the new Electrical package of the Modelica Buildings library. The package contains models for different types of sources, loads, storage equipment, and transmission lines for electric power. The package contains models that can be used to represent DC, AC one-phase, and AC-three phases balanced and unbalanced systems. The models have been successfully validated against the IEEE four nodes test feeder. An example shows how the models can be used to study the integration and control of renewable energy sources in a electric distribution grid.
Bounds on the restrained Roman domination number of a graph

A {em Roman dominating function} on a graph $G$ is a function$f:V(G)rightarrow {0,1,2}$ satisfying the condition that everyvertex $u$ for which $f(u) = 0$ is adjacent to at least one vertex$v$ for which $f(v) =2$. {color{blue}A {em restrained Roman dominating}function} $f$ is a {color{blue} Roman dominating function if the vertices with label 0 inducea subgraph with no isolated vertex. } The weight of a restrained Roman dominating function isthe value $omega(f)=sum_{uin V(G)} f(u)$. The minimum weight of arestrained Roman dominating function of $G$ is called the { emrestrained Roman domination number} of $G$ and denoted by $gamma_{rR}(G)$. In this paper we establish some sharp bounds for this parameter.
The Impact of Selected Socioeconomic Factors on Amount of Earned Income Tax Credit Received by Low-Income Rural Residents

This paper examines the impact of selected socioeconomic factors on amount of earned income tax credit (EITC) received by low-income rural residents. Using a questionnaire, data were obtained from a convenience sample of 82 respondents in South Central Alabama, and were analyzed using descriptive statistics and multiple regression analysis. The results showed that the average amount of EITC received was $1470; a majority of recipients were females, younger, with lower education, lower household incomes, and single. In addition, gender had a statistically significant ( p <0.05) effect on the amount of EITC received, with females receiving more EITC than males. Since females received more EITC than males, they could be specifically targeted to participate in programs, such as individual development accounts, that encourage low-income people to save. They could, at least, save part of their credit as they have relatively more disposable income and this will allow them to build wealth. Keywords: EITC, low-income, rural residents, socioeconomic factors
Use of probiotics to replace antibiotics for broilers

This study was carried out to evaluate the effect of supplementation of probiotics (Lactobacillus acidophilus, Enterococcus faecium and Bifidubacterium bifidum) and antibiotics (flavomicina and staquinol) on diets for broilers from 1 to 42 days of age, reared in clean (new litter) and challenged (reused litter) environments. A total of 768 one-day-old male broilers of the Cobb 500 strain were distributed in a completely randomized design in a 2 × 4 factorial arrangement (2 litter types × 4 diets), totaling eight treatments with eight replications and 16 poultry per experimental unit. The results of performance and carcass characteristics were submitted to analysis of variance using the Studen Newman Keuls test at 0.05 probability. In the period of 1-21 days of age, the supplementation with probiotics for poultry raised in the new litter reduced feed intake, whereas in those raised in reused litter, the diet free of growth promoter showed a lower consumption. Poultry from 1 to 42 days raised in new litter had lower feed intake when supplemented with probiotics. Other results of performance and carcass yield were not affected. For the poultry raised in reused litter, the use of probiotics resulted in lower thigh yield and higher liver yield. The use of different growth promoters in feed for broilers does not influence the performance of poultry raised in new or reused litter. The use of probiotic promotes lower feed intake without compromising the performance, regardless of the type of litter used, demonstrating the feasibility of using this product as substitute for antibiotics.
Determinants of labor shortage - with particular focus on the German environmental sector

"Despite the ongoing discussion on labor shortage in the German economy there is still a lack of empirical analyses of this problem based on adequate econometric methods. The paper explores the determinants of labor shortage in the environmental sector supplying products and services that help to reduce environmental impacts and energy use. Labor shortages occur when the price adjustment mechanism is too slow to balance labor demand and supply. The empirical analysis of labor shortage uses recent data of the establishment panel of the Institute for Employment Research in Nuremberg. A descriptive analysis shows that the environmental sector seems to be over-proportionally affected by labor shortage. Following the results of an econometric analysis innovative firms are significantly more likely to be characterized by labor shortage problems. For climate protection technologies, analytics/consulting or environmental research and development labor shortage seems to result from the respective innovative activities of the firms requiring highskilled and specialized staff whereas labor shortage in the recycling sector is due to a lack of low-paid personnel. Further econometric estimations show that firms characterized by labor shortage problems are significantly more likely to pay wages above average. " (Author's abstract, IAB-Doku) ((en))
Non-rhizobial bacteria for improved nodulation and grain yield of mung bean (Vigna radiata (L.) Wilczek)

-1 ). Two isolates, M1 and M3, were able to fix nitrogen. 16S rRNA gene sequence analysis of potential isolates revealed that bacterial isolates M2 and M6 showed maximum similarity with Bacillus subtilis, M4 with Bacillus simplex and M5 with Agrobacterium tumefaciens. Further, the impact of co-inoculation of these non-rhizobial bacteria with Bradyrhizobium sp. MN-S on nodulation, plant growth and grain yield of mung bean was also assessed. Generally, co-inoculation significantly improved nodulation and grain yield compared with Bradyrhizobium sp. MN-S alone inoculation. The enhancement due to co-inoculation in nodule number and nodule dry weight was 78 and 127%, respectively when compared with the Bradyrhizobium sp. MN- S alone. Co-inoculation combination of Bradyrhizobium sp. MN-S with B. subtilis M6 performed best by increasing 22% grain yield, while the rest combinations also benefited plants non-significantly. The results show that non-rhizobial plant growth promoting bacteria improve nodulation and grain yield of the legumes upon co-inoculation with crop specific rhizobia.
Extraction of Polyphenolic Content from Peperomia pellucida (L) Kunth Herb with 1-Ethyl-3-methylimidazolium Bromide

Extraction of the polyphenolic content from Peperomia pellucida (L) Kunth herb (Piperaceae family) using 1-ethyl-3-methylimidazolium bromide as a solvent was attempted. The herbs were extracted using the ionic liquid-based microwave-assisted extraction method with some combination factors such as extraction time, microwave power, liquid-solid ratio, and ionic liquid concentration. The optimum yields of total polyphenolic content (13.750 µg GAE/g sample) were obtained by using a microwave power of 30 % Watt, extraction time of 10 minutes, the liquid-solid ratio of 14 ml/g, and ionic liquid concentration of 0.7 mol/l. Based on the results, compared to conventional organic solvent, the solvent of 1-ethyl-3-methylimidazolium bromide could provide higher extraction yields of polyphenolic content. Moreover, the extraction of a secondary metabolite from this herb becomes more rapid, easy, and efficient.
Study on the Indicators of Taiwanese Tour Guides’ Service Quality

The tourism industry is considered a typical service industry, one in which the involvement of service components is relatively high. Serving and satisfying customers are fundamental goals of the tourism business, with service providers being part of the product itself. Given tour guides’ roles as intermediaries between tourists and an unfamiliar environment, special attention should be paid to the service quality of tour guides, as it has the potential to increase tourist satisfaction and produce measurable benefits in profits and market share. The aim of the study is therefore to build the quality indicators of tour guide services. In terms of research methodologies, a combination of qualitative and quantitative approaches was conducted to reach the objectives. After both in-depth interviews and two rounds of focus group sessions, six dimensions (reliability, response, physical environment, guarantee, care and culture) and 30 indicators were obtained. Analytic Hierarchy Process (AHP) was applied to determine the weighting of various evaluation criteria on the indicators of Taiwanese tour guides’ service quality. Among the criteria, “The tour guides have a precise service attitude and execution ability. ” was found to be the most important, while “During the trip, the tour guides dress properly. ” ranked as the least important.
The role of CD 44 and osteopontin in infection and inflammation

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What's role of essential oils in cereal protection?

Crop protection plays a key role in ensuring food security to a human population that is projected to 10 billion peoples after 2020. Weeds, animal pests, pathogens and viruses are responsible for competition and destruction of cultivated plants, with the overall result that crop yield can be strongly threatened. In recent years, the use of chemicals has increased consumer concern and their use is becoming more restrictive and alternative ”green” measures have been proposed for crop protection, including mineral salts, biological agents and plant extracts In this paper the most recent results on the use of essential oils and their components for cereal protection are reviewed and critically discussed. The focus is on cereals, that are the most important crops worldwide, both in terms of cultivation areas and total yield. Particular attention is focused on the possible role of natural molecules for plant pathogen and pest control and on their allelopathic properties for weed control in consideration of the fact that infestations are conducive to infections.
Quantification of Honeydew Production Caused By Dubas Bug on Three Date Palm Cultivars

Dubas bug, Ommatissus lybicus is a key sucking pest of date palm in Balochistan. Three main commercial date palm cultivars, viz, Kehraba, Jan Sore and Mozavati were selected for present study. Suceptability of cultivars were scaled by considering number and size of honeydew droplets. Count of honeydew droplets excreted by dubas bug (population) was highly significant among tested cultivars over the seasons and various life stages. Irrespective of cultivars, among all life stages maximum (7.1) and minimum (2.8) number of honeydew droplets were excreted by 5th nymphal instar and adult stages of dubas bug respectivelly. Mean diameter of honeydew droplet (spot) size of 1st instar, 5th instar, and adult stages was 0.15, 0.60, 0.65 mm, with a relative % age of 6.0, 23.5 and 25.4, respectively. Mean diameter of honeydew droplet was 0.426 mm and 0.428 mm in spring and summer 2009-10, respectively.The size of honeydew droplets was larger in Jan Sore compared to Mozavati and Kehraba cultivars.
Contribution of ICRISAT to studies on plant resistance to insect attack.

T h e I n t e r n a t i o n a l C r o p s R e s e a r c h I n s t i t u t e for t h e S e m i A r i d T r o p i c s ( I C R I S A T ) h a s a m a n d a t e to serve , in p a r t i c u l a r , the smal l f a rmers o f the s emi a r i d t rop i c s . T h e t a rge t c rops a re : s o r g h u m (Sorghum bicoior (L.) M o e n c h ) , p e a r l mi l l e t (Pennisetum americanum (L.) L e e k e ) , p i g e o n p e a (Cajanus cajan (L.) M i l l s p . ) , ch i ckpea (Cicer arietinum L.) a n d g r o u n d n u t s (Arachis hypogaea L . ) . Al l these c rops suffer ma jo r losses caused by insec t pe s t s , yet all, e x c e p t g r o u n d n u t s , a r e gene ra l l y g r o w n w i t h o u t pes t i c ide p r o t e c t i o n i n the t a rge t f a r m e r s ' fields. O n e o f the m o s t a t t r a c t i v e op t i ons for pes t m a n a g e m e n t
Numerical and Experimental Study of the Melting Process of a Phase Change Material in a Partically Filled Spherical Shell

This Thesis is brought to you for free and open access by Lehigh Preserve. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of Lehigh Preserve. For more information, please contact preserve@lehigh.edu. Recommended Citation Xiong, Wen, "Numerical and Experimental Study of the Melting Process of a Phase Change Material in a Partically Filled Spherical Shell" (2017). Theses and Dissertations. 2888. http://preserve.lehigh.edu/etd/2888 brought to you by CORE View metadata, citation and similar papers at core.ac. uk
Direct bounds on heavy toplike quarks with standard and exotic decays

Heavy vector-like quarks with electric charge $Q=2/3$ (also called \textit{heavy tops}) appear naturally in many extensions of the Standard Model. Although these typically predict the existence of further particles below the TeV scale, direct searches for heavy tops have been performed assuming that they decay only into SM particles. The aim of this paper is to overcome this situation. We consider the most constraining experimental LHC searches for vector-like quarks, including analyses of the 36 fb$^{-1}$ of data collected in the latest run at 13 TeV of center of mass energy, as well as searches sensitive to heavy tops decaying into a new scalar, $S$. Combining all these, we derive bounds for arbitrary values of the heavy top branching ratios. A simple code that automatizes this process is also provided. At the physics level, we demonstrate that bounds on heavy tops are not inevitably weaker in the presence of new light scalars. We find that heavy tops with masses below $\sim 900$ GeV are excluded by direct searches, independently of whether they decay into $Zt, Ht, Wb$ or $St$ (with $S$ giving either missing energy of bottom quarks) or into any combination of them.
Asymmetric Pattern of Intra-industry Trade Between the United States and Canada

This study proposes alternative rationales to explain an asymmetric intra-industry trade pattern between the United States and Canada after the free trade agreement became effective. Using time-series data, a gravity equation is developed which enables us to examine the impacts of relative market size, exchange rates, and transportation costs on bilateral trade. It is found that these three effects have to be taken together in order to explain the asymmetric intra-industry trade pattern. Exchange rate impacts on bilateral trade are found to the most significant, indicating that U.S. dollar appreciation causes a more asymmetric trade pattern for agricultural goods than for large-scale manufacturing goods.