Awareness and Implementation of Solid Waste Management (SWM) Practices

This research used the descriptive-correlational method to determine the level of respondents’ awareness and extent of implementation of Solid Waste Management (SWM) Practices in District 2, Bayawan City Division, Negros Oriental, Philippines for SY 2018-2019 in terms of the areas of segregation, reduce, reuse, recycle, and disposal. The quantitative data were gathered from 81 teachers and 189 students. Also, a survey questionnaire was utilized by the researcher. The statistical tools used in the analysis of the data were weighted mean, mean, and spearman rank correlation. The results revealed that the level of respondents’ awareness on SWM Practices as both perceived by the teachers and students were very high and the extent of implementation of these practices were very great. In addition to this, a significant relationship was noted between the levels of awareness and extents of implementation of SWM Practices. It can be concluded that the level of awareness greatly influenced the extent of implementation of SWM Practices by the teachers and students in District 2, Bayawan City Division

Supporting an Introductory EM Lab Redesign with the E-CLASS and AAPT Lab Guidelines

This poster presents the preliminary results of attitude surveys (E-CLASS - U. Colorado) given to students taking the current PHYS-225 - Electricity & Magnetism Laboratory at Kettering University as well as the beginnings of work done in redesigning the course around a set of skills-based learning outcomes and design activities to progress students toward achieving these goals. These outcomes will encourage students to: ask and answer scientific questions through experimental design and implementation; develop technical and practical laboratory skills; generate, analyze, and interpret data; incorporate uncertainty in measured values, calculated values, and graphical representations; and write effective technical reports that articulate the reasoning that connects theoretical models to laboratory activities and use appropriate style and voice. Our goals are to produce a more authentic laboratory experience through the use of open-ended activities, building reflection into assignments, and allowing students to have more of a say in what they are investigating. *The presenters would like to thank the authors of the E-CLASS surve

Antiplasmodial and onset speed of growth inhibitory activities of Tithonia diversifolia (Hemsley) A Gray leaf fractions against Plasmodium falciparum

Purpose: To investigate the antiplasmodial and onset of growth inhibitory activities of T. diversifolia fractions against Plasmodium falciparum FCR3 strain.Methods: Seven fractions of T. diversifolia (F1-F7) were used in this study. Phytochemical analysis was conducted to identify the major compounds in the fractions. Various concentrations of fractions ranging from 2.5 – 100.0 μg/mL were exposed to P. falciparum FCR3 strain for 60 h and the growth inhibition was then calculated. The fraction which exhibited the best antiplasmodial activity was tested further to determine the growth inhibition onset against P. falciparum FCR3 strain. This was achieved by examining the inhibitory activity of the fraction when it was added at the beginning of the experiment and assessing subsequent parasite growth after 8, 16, 24, 32, and 40 h incubation.Results: The major compounds found in the fractions were terpenes. Fraction six (F6) had the best antiplasmodial activity (IC50 13.63 ± 1.43 μg/mL). During the first 32 h of incubation, F6 inhibited the growth of parasites and this increased with longer incubation time; 32 h incubation provided the highest growth inhibition (99.23 ± 0.05 %). After 32 h the inhibition activity began to decrease, and resulted in < 50 % inhibition at 48 h incubation. This result suggested that F6 is a rapid-onset antiplasmodial agent.Conclusion: Fractions of T. diversifolia, especially F6, are promising antimalarial agents and require further development for clinical application.Keywords: Tithonia diversifolia, Plasmodium falciparum, Onset speed, Antimalarial, Antiplasmodia

Ethics of computer use: A survey of student attitudes: Working paper series--06-02

The potential for misuse of computer systems and resources has been an important issue for many years. The rapid growth in use of remote access systems, the use of the internet and distributed systems for financial and other sensitive transactions, and the expansion in the availability of products in digital form is causing ethical issues surrounding misuse of computer resources to become an increasingly serious problem. This paper surveys ethical attitudes of a set of undergraduate business majors. The survey presents sets of scenarios in which students are asked to indicate whether a particular action is ethical or unethical using a 7 level Likert scale. Alternative base scenarios have been designed to present ethical issues relating to various types of unauthorized access to computer resources. Other sets of base scenarios focus on the use of computers to illegally copy products (software and music recordings). In addition, for each base scenario, alternative sub-scenarios are presented in which the motives of the individual vary between intellectual curiosity, securing resources for personal use, profit, and malice toward the affected entity. The scenarios are designed to provide an evaluation of how the level of malicious intent in the action affects the students' perception of the degree to which the action represents a breach of ethics. Results of this survey suggest that the intent of the individual engaging in unauthorized access or illegal copying does substantially affect student perceptions of the degree to which the behavior is a violation of ethics. In general, actions undertaken for profit or malicious intent are judged to be less ethical than the same actions undertaken for intellectual curiosity or to secure resources for personal use. In addition, a very strong majority of the students surveyed believe that any active participation in downloading is unethical

The Iowa Homemaker vol.1, no.12

Table of Contents Home Economics Celebrates Third Annual “Hec Day” by Marjorie Miller, page 1 To Live to Be a Hundred Is Your Privilege by Florence M. Busse, page 2 Mere Lines – They Make or Mar Our Costumes by Anna Prang, page 3 How False Ideas Mar Beauty by Mae Kelly, page 4 What Kind of Breakfasts Do You Serve? by N. Beth Bailey, page

Antiangiogenic Activity of Methanolic Extract From Akar Pasak Bumi (Eurycoma Longifolia, Jack) on Chorioallantoic Membrane of Chicken Embryo Induced by Bfgf

Angiogenesis is a neovascularization process which its function is to supply nutrient and oxygen for cell survival. Pasak bumi is one of the Indonesian original plants having anti cancer activity. Extract of methanol, buthanol, kloroform, and water akar pasak bumi was proved to have cytotoxic effect on cancer cell culture. This research aim to know activity of antiangiogenic extract of metanol akar pasak bumi at chorioallantoic membrane of chicken embryo. Antiangiogenic activity test conducted by divide 8-9 days old egg embrio into 8 groups. Group I as paper disc control, group II as bFGF control, group III as bFGF control + DMSO 0.8% solvent, group IV, V, VI, VII, and VIII as groups of treatment. Each groups of treatment were gave by bFGF 1ng/µL extract of metanol akar pasak bumi respectively with concentration 20, 40, 60, 80 and 100 µg/mL concentration. After 3 days incubation, then the chorioallantoic membrane macroscopic and microcospically analized. The antiangiogenic activity extract of metanol akar pasak bumi at chorioallantoic membrane bFGF induce at used concentration, that is start from 40 µg/mL concentration. The increases of the concentration also increase the prohibition activity to angiogenesis

Development of an Understanding of Reactive Mercury in Ambient Air: A Review

This review focuses on providing the history of measurement efforts to quantify and characterize the compounds of reactive mercury (RM), and the current status of measurement methods and knowledge. RM collectively represents gaseous oxidized mercury (GOM) and that bound to particles. The presence of RM was first recognized through measurement of coal-fired power plant emissions. Once discovered, researchers focused on developing methods for measuring RM in ambient air. First, tubular KCl-coated denuders were used for stack gas measurements, followed by mist chambers and annular denuders for ambient air measurements. For ~15 years, thermal desorption of an annular KCl denuder in the Tekran® speciation system was thought to be the gold standard for ambient GOM measurements. Research over the past ~10 years has shown that the KCl denuder does not collect GOM compounds with equal efficiency, and there are interferences with collection. Using a membrane-based system and an automated system—the Detector for Oxidized mercury System (DOHGS)—concentrations measured with the KCl denuder in the Tekran speciation system underestimate GOM concentrations by 1.3 to 13 times. Using nylon membranes it has been demonstrated that GOM/RM chemistry varies across space and time, and that this depends on the oxidant chemistry of the air. Future work should focus on development of better surfaces for collecting GOM/RM compounds, analytical methods to characterize GOM/RM chemistry, and high-resolution, calibrated measurement systems

Universality of S-matrix correlations for deterministic plus random Hamiltonians

We study S-matrix correlations for random matrix ensembles with a Hamiltonian which is the sum of a given deterministic part and of a random matrix with a Gaussian probability distribution. Using Efetov's supersymmetry formalism, we show that, in the limit of infinite matrix size of the Hamiltonian, correlation functions of S-matrix elements are universal on the scale of the local mean level spacing: the dependence of the deterministic part enters into these correlation functions only through the average S-matrix and the average level density. This statement applies to each of the three symmetry classes (orthogonal, unitary, and symplectic).Comment: 5 pages, no figure, REVTeX 3.1 with pLaTeX 2e. Minor corrections, references added. Accepted for publication in Phys. Rev.