The Problem with Group Work: Engagement of all Students in Group Assignments

The premise of this research project was to attempt to finds solutions to eradicate the problem of disengagement in the classroom when conducting group work and employing the use of group assignments in order to assess student learning. I wanted to propose a way teachers can strive to ensure all students within the group contribute to the groups’ success and learning without having some students disengage from the situation and rely on others to do the work of the group. The problem with group projects is too often the division of work becomes unfair, and only some members of the group are actually engaged in learning. The accountability for learning and progress forward shifts from the individual to the group, and this too often results in only part of the group making any learning contributions while the other part of the group has checked out and become disengaged from the learning

The Effects of Men\u27s Lacrosse Protective Equipment on Thermoregulation and Perceptions During Exercise Heat Stress

The effects of men\u27s lacrosse protective equipment on thermoregulation and perceptions during exercise heat stress Amanda P. Glasgow: Exercise Science Research Center, University of Arkansas, Fayetteville, AR. Background: Exertional heat stroke and other heat related illnesses are a common concern for athletic coaches and players. Looking to prevent further injuries, it is questioned whether players perceive if their bodies are heating to a dangerous level. Many factors play into the body’s response and the players perception including thirst, thermoregulation, and the kind of protective equipment the athletes are wearing. Purpose: Examine if perceptual responses are different when participants wear men’s lacrosse protective equipment compared to when they do not. Our hypothesis was that reported perceptual responses would be different between equipment and non-equipment trials. Methodology: We recruited 12 healthy males ages 21.8 ± 3.35 with heights 181.29 cm ± 6.07 cm, with body fat of 14.7% ± 4.4% to complete our randomized crossover study. Participants were required to have previous equipment intensive sport experience. After a health history clearance and a familiarization session, participants completed two trials (once with and once without standard men’s lacrosse protective equipment) a simulated lacrosse exercise protocol consisting of four 12-minute sessions with rests totaling 60 minutes. Measured values included first morning urine osmolality and rating of perceived exertion (RPE), thermal sensation, thirst perception, and muscle pain perception every 15minutes throughout and following exercise. Results: There was no significant difference between trials with first morning urine osmolality (p=.128). In terms of equipment, RPE was significantly greater with equipment throughout trials (p\u3c.001) compared to the no equipment trial. Thermal sensation was significantly greater during the equipment trial versus the no equipment trial (p\u3c.001). Regardless of time point, thirst sensation was greater in the equipment trial compared to the no equipment trial (p=.001). Muscle pain was significantly greater throughout trials, regardless of time point (P=.006) in the equipment trial as well. Discussion: Overall, our study supported our hypothesis that men’s lacrosse equipment accentuates perceptual stress during exercise heat stress. Regardless of time point, RPE, thermal sensation, thirst sensation, and muscle pain were reported as greater during equipment trials than non-equipment trials. Funding Source: University of Arkansas Honors College Research Gran

Doe v. Ashcroft and Its Place in the Judicial Trend: How the Courts Have Advanced Civil Liberties in Step with Advances in Technology

As many jurists and scholars have noted, the United States has a long-standing history of encroaching upon the civil liberties of its citizens, especially during times of war or conflict.\ud \ud For instance, during the Civil War, President Lincoln unilaterally suspended the writ of habeas corpus in response to increased violence and the threat of Southern succession.During World War I, Postmaster General Albert Burleson used the Espionage Act to suspend mailing privileges for certain “non-mailable” materials, such as newspapers and other dissident publications critical of the war effort

Food safety regimes in Scotland, 1899-1914

No abstract available

An oxide dispersion strengthened alloy for gas turbine blades

The strength of the newly developed alloy MA-6000E is derived from a nickel alloy base, an elongated grain structure, naturally occurring precipitates of gamma prime, and an artificial distribution of extremely fine, stable oxide particles. Its composition is Ni-15Cr-2Mo-2Ta-4W-4.5Al-2.5Ti-0.15Zr 0.05C-0.01B-1.1Y2O3. It exhibits the strength of a conventional nickel-base alloy at 1400 F but is quite superior at 2000 F. Its shear strength is relatively low, necessitating consideration of special joining procedures. Its high cycle, low cycle, and thermal fatigue properties are excellent. The relationship between alloy microstructure and properties is discussed

Longitudinal shear behavior of several oxide dispersion strengthened alloys

Two commercial oxide dispersion strengthened (ODS) alloys, MA-753 and MA-754, and three experimental ODS alloys, MA-757E, MA-755E, and MA-6000E, were tested in shear at 760 C. Comparisons were made with other turbine blade and vane alloys. All of the ODS alloys exhibited less shear strength than directionally solidified Mar-M 200 = Hf or then conventionally cast B-1900. The strongest ODS alloy tested, MA-755E, was comparable in both shear and tensile strength to the lamellar directionally solidified eutectic alloy gamma/gamma prime - delta. Substantial improvements in shear resistance were found for all alloys tested when the geometry of the specimen was changed from one generating a transverse tensile stress in the shear area to one generating a transverse compressive stress. Finally, 760 C shear strength as a fraction of tensile strength was found to increase linearly with the log of the transverse tensile ductility

What works and what's just?

This paper is based on a presentation entitled 'What Works in Probation', delivered to an Invitational Conference for Directors of Probation Services in Europe organised by the Council of Europe, the Conference Permanente Européenne de la Probation and the French Ministry of Justice at the Palais de l'Europe in Strasbourg (26th-28th November, 2008). Drawing on a much more extensive and separately published report about the effectiveness of offender supervision (McNeill, 2009), I try to argue here that, despite the apparently technical nature of questions of effectiveness, in fact any considered and critical analysis of the empirical evidence about desistance, rehabilitation and' what works?' compel us to consider the moral character and context of criminal justice interventions

Exploratory study on the effects of novel diamine curing agents and isocyanate precursors on the properties of new epoxy and urethane adhesives

The effects of novel aromatic diamine structures on the adhesive properties of epoxy and polyurethane adhesives were studied. Aromatic diamines based on benzophenone and diphenyl-methane isomers were evaluated as curing agents for epoxy resins and benzophenone and diphenyl-methane based diamine isomers were evaluated as curing agents for polyurethane adhesives. Polyurethane adhesives were prepared based on m, m prime-diisocyanato-diphenyl-methane and m, m prime-diisocyanato-benzophenone. The m, m prime-diisocayanato-diphenyl-methane based adhesive had properties comparable to state-of-the-art adhesives. The m, m prime-diisocyanato-benzophenone based adhesive was extremely reactive

Creep shear behavior of the oxide dispersion strengthened superalloy MA 6000E

The shear rupture life of the oxide dispersion strengthened (ODS) superalloy MA 6000E was determined at 650 and 760 C was 250 MPa. Comparisons were made at 760 C with the conventional cast superalloy B-1900+Hf, the ODS alloy MA 754, and the directionally solidified eutectic alloy gamma/gamma prime-delta was 170 MPa, and for B-1900+Hf was 360 MPa. The ODS alloy MA 6000E and gamma/gamma prime-delta failed with very little indication of ductile accommodation. Both MA 754 and B-1900+Hf showed some ductile tearing. Fracture surfaces of the ODS alloy MA 754 showed discontinuities similar size, shape, and roughness to its grain structure, but the fracture surfaces of MA 6000E were much smoother than its grain boundaries

A study of the oxide dispersion and recrystallization in NiCrAl prepared from preoxidized powder

The sintered aluminum powder (SAP) technique of dispersion strengthening (formation of an oxide dispersion by preoxidation of metal powders) was applied to atomized powder of a nickel alloy containing, by weight, 17% Cr, 5% Al, and 0.2% Y. The SAP-NiCrAl alloy (without the ytterbium removed by oxdation) was worked by extrusion and rod rolling at 1205 C and by swaging at 760 C. Annealing treatments were applied after working to determine the recrystallization response. The NiCrAlY alloy, similarly prepared from atomized powder, but without a preoxidation treatment, was examined for comparison. The SAP-NiCrAl alloy exhibited oxide particle size and spacing much larger than that usually observed in oxide dispersion strengthened alloys; nonetheless, it was possible to achieve abnormal (secondary) recrystallization in the SAP-NiCrAl alloy as has been reported for other oxide dispersion strengthened alloys. In contrast, the unoxidized NiCrAlY alloy exhibited only primary recrystallization