Group interaction

The objective of this research is to examine how reciprocal teaching affects learners in both learning outcomes and attitudes. To meet the desired objectives, this mixed method study examined the effect of the reciprocal teaching model (RTM) on enhancing the reading comprehension abilities of English-majored sophomores.

9p vijiraiya 19-05-2025 2 1   Download

Lecture Information technology project management (Eighth Edition): Chapter 3, after studying this section will help you understand: Describe the five project management process groups, the typical level of activity for each, and the interactions among them; Understand how the project management process groups relate to the project management knowledge areas; Discuss how organizations develop information technology (IT) project management methodologies to meet their needs.

44p cuchoami2510 18-02-2022 32 6   Download

This research investigates the interactive effects of usability, the designer perspective and user expectations on the user experience (UX) of e-commerce websites. It incorporates the theoretical underpinnings of Norman’s (1988) seminal research specifically, Mental Models and Nielsen’s User Categories (1993) to explore the different mental models, domain and technology expertise of two distinct groups – users and designers – in the interaction with a selected system image, that of the e-commerce website.

293p runthenight04 02-02-2023 12 2   Download

This is an empirical investigation into the development of the accounting profession in Sri Lanka in the post-independence era. Taking the Institute of Chartered Accountants of Sri Lanka (ICASL) as a case, the study researches the accounting professionalization process during the past five decades (1959-2010). Thus, the study focuses on the struggles and interactions between competing groups and organisations within the accounting profession.

341p runthenight04 02-02-2023 10 3   Download

This study was conducted at some universities in Ho Chi Minh city in Vietnam. The objectives aimed at finding out the similarities and differences in teachers’ and students’ beliefs about classroom interactions in large non-English majored classes and how teachers’ and students’ beliefs about classroom interactions corresponded to their actual practice. Data were collected from questionnaires for 100 teachers teaching English to non-English majors and 100 students. Besides, semi-structured interviews were conducted with representative teachers and students from both groups.

236p nguathienthan12 23-05-2021 21 4   Download

This section describes the system's decomposition into lightweight processes single threads of control and heavyweight processes groupings of lightweight processes. Organize the section by groups of processes that communicate or interact. Describe the main modes of communication between processes, such as message passing, interrupts, and rendezvous.

8p xaydungk23 30-12-2015 43 3   Download

At the end of the session, participants should be able to: becoming aware of your patterns of interactional behavior, becoming aware of the effect of your behavior on others, receiving information to correct inaccurate perceptions and assumptions.

19p tuoihaimuoi32 19-06-2014 52 3   Download

Cys341 of carboxypeptidase Y, which constitutes one side of the solvent-accessible surface of the S1 binding pocket, was replaced with Gly, Ser, Asp, Val, Phe or His by site-directed mutagenesis. Kinetic analysis, using Cbz-dipeptide substrates, revealed that polar amino acids at the 341 position increased Km whereas hydrophobic amino acids in this position tended to decrease Km.

6p system191 01-06-2013 41 4   Download

Important hydrogenbonding interactions between substrate OH-groups inyeasta-glucosidases andoligo-1,6-glucosidase from glycoside hydrolase family 13 have been identi®ed by measuring the rates of hydrolysis of methyla-isomaltoside and its seven monodeoxygenated analogs. The transition-state stabilization energy, DDGà, contributed by the indi-vidual OH-groups was calculated from the activities for the parent and the deoxy analogs, respectively, according toDDGà ˆ±RTln[(Vmax/Km)analog /(Vmax/Km) parent]....

7p research12 23-04-2013 34 2   Download

Previous structural andmutagenesis studies indicate that the invariant a-amino and a-carboxyl groups of glutamate receptor agonists are engaged in polar interactions with oppositely charged, conserved arginine and glutamate resi-dues in the ligand-binding domain ofa-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor.To examine the role of these residues (R507 and E727 in the GluR-D subunit) in the discrimination between agonists and anta-gonists, we analyzed the ligand-binding properties of homomeric GluR-D and its soluble ligand-binding domain withmutations at thesepositions....

10p tumor12 22-04-2013 44 3   Download

Human hepatitis delta (HDV) ribozyme is one of small ribozymes, such as hammerhead and hairpin ribozymes, etc. Its secondary structure shows pseudoknot structure com-posed of four stems (I to IV) and three single-stranded regions (SSrA, -B and -C). The 3D structure of 3¢-cleaved product of genomic HDV ribozyme provided extensive information about tertiary hydrogen bonding interactions between nucleotide bases, phosphate oxygens and 2¢OHs including new stem structure P1.1.

12p tumor12 22-04-2013 40 3   Download

Escherichia coliphosphoenolpyruvate (PEP) carboxykinase catalyzes thedecarboxylationof oxaloacetateand transfer of the c-phosphoryl group of ATP to yield PEP,ADP,and CO2 . The interaction of the enzyme with the substrates ori-ginates important domainmovements in the protein. In this work,the interaction of several substrates and ligands with E. coliPEP carboxykinase has been studied in the phos-phopyridoxyl (P-pyridoxyl)-enzyme adduct.

9p tumor12 22-04-2013 26 2   Download

The molecular mechanism of the presynaptic neurotoxicity of snake venom phospholipases A2(PLA2s) is not yet fully elucidated. Recently, newhigh-affinity binding proteins for PLA2 toxins have been discovered, including the important intracellular Ca 2+ sensor, calmodulin (CaM). In the present study, the mode of interaction of group IIAPLA2swiththe Ca 2+ -bound form of CaM was investigated by mutational analysis of ammodytoxin A (AtxA) from the long-nosed viper (Vipera ammodytes ammodytes).

8p fptmusic 16-04-2013 40 3   Download

In a previous study we showed that natural polyamines interact in the nuclear environment with phosphate groups to form molecular aggregates [nuclear aggregates of polyamines (NAPs)] with estimated molecular mass values of 8000, 4800 and 1000 Da. NAPs were found to interact with genomic DNA, influence its conformation and interfere with the action of nucleases.

11p fptmusic 11-04-2013 45 2   Download

HIV-1 protease is a pivotal enzyme in the later stages of the viral life cycle which is responsible for the processing and maturation of the virus particle into an infectious virion. As such,HIV-1proteasehasbecomean important target for the treatment ofAIDS, and efficient drugs have beendeveloped. However, negative side effects and fast emerging resistance to the current drugs have necessitated the development of novel chemical entities in order to exploit different phar-macokinetic properties as well as new interaction patterns....

9p awards 05-04-2013 33 2   Download

Substitution oftrans-proline at three positions in ubiquitin (residues 19, 37 and 38) produces significant context-dependent effects on protein stability (both stabilizing and destabilizing) that reflect changes to a combination of parameters including backbone flexibility, hydrophobic interactions, solvent accessibility to polar groups and intrinsic backbone conformational preferences. Kinetic analysis of thewild-type yeast protein reveals a predominant fast-folding phase which conforms to an apparent two-state folding model. ...

11p awards 05-04-2013 50 4   Download

Arginine is a versatile additive to prevent protein aggrega-tion. This paper shows that arginine ethylester (ArgEE) prevents heat-induced inactivation and aggregation of hen egg lysozyme more effectively than arginine or guanidine. TheadditionofArgEEdecreased themelting temperatureof lysozyme. This data could be interpreted in terms of ArgEE binding to unfolded lysozyme, possibly through the ethyl-ated carboxyl group, which leads to effective prevention of intermolecular interaction among aggregation-prone mole-cules.

6p awards 05-04-2013 27 3   Download

As an essential element, selenium is present in enzymes from several families, including glutathione peroxidases, and is thought to exert anticarcinogenic properties. A remarkable feature of selenium consists of its ability to oxidize thiols under reducing conditions. Thus, one mode of action recently suggested is the oxidation of thiol groups of metal-lothionein, thereby providing zinc for essential reactions.

10p awards 05-04-2013 47 3   Download

Kinetic experiments with a substrate series of phenylacetyl-arylamides reveal that at least one polar group in the amine moiety is required for the proper orientation of the substrate in the large nucleophile-binding subsite of penicillin acylase ofEscherichia coli. Quantum mechanical molecular model-ling of enzyme–substrate interactions in the enzyme active site shows that in the case of substrates lacking local sym-metry, the productive binding implies two nonsymmetrical arrangements with respect to the two positively charged guanidinium residues of ArgA145 and ArgB263....

8p dell39 03-04-2013 46 3   Download

EcoRII DNA methyltransferase (M.EcoRII) recognizes the 5¢…CC*T/AGG…3¢ DNA sequence and catalyzes the transfer of the methyl group fromS-adenosyl-L-methionine to the C5 position of the inner cytosine residue (C*). Here, we study themechanismof inhibitionofM.EcoRII byDNA containing 2-pyrimidinone, a cytosine analogue lacking an NH2 group at the C4 position of the pyrimidine ring. Also, DNA containing 2-pyrimidinone was used for probing contacts ofM.EcoRII with functional groups of pyrimidine bases of the recognition sequence....

9p dell39 03-04-2013 36 4   Download