Memory Modulation in the Classroom: Selective Enhancement of College Examination Performance by Arousal Induced after Lecture

Laboratory studies examining moderate physiological or emotional arousal induced after learning indicate that it enhances memory consolidation. Yet, no studies have yet examined this effect in an applied context. As such, arousal was induced after a college lecture and its selective effects were examined on later exam performance. Participants were divided into two groups who either watched a neutral video clip (n = 66) or an arousing video clip (n = 70) after lecture in a psychology course. The final examination occurred two weeks after the experimental manipulation. Only performance on the group of final exam items that covered material from the manipulated lecture were significantly different between groups. Other metrics, such as the midterm examination and the total final examination score, did not differ between groups. The results indicate that post-lecture arousal selectively increased the later retrieval of lecture material, despite the availability of the material for study before and after the manipulation. The results reinforce the role of post-learning arousal on memory consolidation processes, expanding the literature to include a real-world learning context

Technique of elbow bending small jacketed transfer lines Patent

Elbow forming in jacketed pipes while maintaining separation between core shape and jacket pipe

Health-care district management information system plan: Review of operations analysis activities during calendar year 1975 and plan for continued research and analysis activities

Operations research activities developed to identify the information required to manage both the efficiency and effectiveness of the Veterans Administration (VA) health services as these services relate to individual patient care are reported. The clinical concerns and management functions that determine this information requirement are discussed conceptually. Investigations of existing VA data for useful management information are recorded, and a diagnostic index is provided. The age-specific characteristics of diseases and lengths of stay are explored, and recommendations for future analysis activities are articulated. The effect of the introduction of new technology to health care is also discussed

Muscle Tension Induced after Learning Enhances Long-Term Narrative and Visual Memory in Healthy Older Adults

Arousing events are better remembered than mundane events. Indeed, manipulation of arousal, such as by muscle tension, can influence memory even when it occurs shortly after learning. Indeed, our founding study showed this approach can raise delayed memory performance in older adults to a level comparable to that of unaided young adults. Yet, systematic studies, especially those investigating different modalities or types of memory, have not been done. This study investigated the effects of a brief bout of isometric exercise via handgrip on narrative and visuospatial episodic memory in healthy elders. Forty-seven participants completed the Logical Memory subtest of the Wechsler Memory Scales III (LM) and the Benton Visual Retention Test (BVRT), followed alternately by no treatment and by moderately squeezing a sand-filled latex ball for 1-min (counterbalanced order and test forms). Isometric exercise significantly increased both positive and negative affect ratings. Retention was tested 2 weeks later. Delayed recall and recognition of LM was enhanced by arousal relative to control, as was recognition of the BVRT. The results extend past findings that muscle tension induced after learning modulates memory consolidation, extending findings in elders to suggest that a simple form of isometric exercise can have practical effects, such as aiding memory for stories and images

Entangling photons using a charged quantum dot in a microcavity

We present two novel schemes to generate photon polarization entanglement via single electron spins confined in charged quantum dots inside microcavities. One scheme is via entangled remote electron spins followed by negatively-charged exciton emissions, and another scheme is via a single electron spin followed by the spin state measurement. Both schemes are based on giant circular birefringence and giant Faraday rotation induced by a single electron spin in a microcavity. Our schemes are deterministic and can generate an arbitrary amount of multi-photon entanglement. Following similar procedures, a scheme for a photon-spin quantum interface is proposed.Comment: 4 pages, 4 figure

Quantum Faraday Effect in Double-Dot Aharonov-Bohm Ring

We investigate Faraday's law of induction manifested in the quantum state of Aharonov-Bohm loops. In particular, we propose a flux-switching experiment for a double-dot AB ring to verify the phase shift induced by Faraday's law. We show that the induced {\em Faraday phase} is geometric and nontopological. Our study demonstrates that the relation between the local phases of a ring at different fluxes is not arbitrary but is instead determined by Faraday's inductive law, which is in strong contrast to the arbitrary local phase of an Aharonov-Bohm ring for a given flux.Comment: Submitted to Phys. Rev. Let

Entangling characterization of (SWAP)1/m and Controlled unitary gates

We study the entangling power and perfect entangler nature of (SWAP)1/m, for m>=1, and controlled unitary (CU) gates. It is shown that (SWAP)1/2 is the only perfect entangler in the family. On the other hand, a subset of CU which is locally equivalent to CNOT is identified. It is shown that the subset, which is a perfect entangler, must necessarily possess the maximum entangling power.Comment: 12 pages, 1 figure, One more paragraph added in Introductio

Astorians Who Became Permanent Settlers

"NOTE: Since the first part of this Document appeared in the issues for July, 1933, Mr. Barry has encountered contentions about the treatment of Johann Koaster or Jo Ashton, page 222.

The Effect of Urban Runoff on the Dew Drop Pond and the Potential for Restoration

The Dew Drop pond, located on the St. Catherine University campus in St. Paul, Minnesota has two functions: (a) to be a beautiful area to the campus for students’ enjoyment and (b) the filtration and removal of nutrients and sediment from runoff before it is transferred to the Mississippi River. This study was conducted to evaluate the effect of runoff from the St. Catherine University campus has on the pond, which is filling in and experiencing summer algal blooms. Sediment cores were collected from varying areas of the pond (west buffer (n=4), east buffer (n=3), no buffer (n=3), east island (n=2), west island (n=2)) and segmented into two or three layers based on visual distinction of texture and color in the sediment. Samples were extracted using 2M KCl and 0.5M NaHCO3, shaken 1 hour, and filtered using Whatman 42 filter paper. Extracts were analyzed for ammonium (NH4-N), nitrate (NO3-N), soluble reactive phosphorus (SRP), dissolved organic carbon (DOC), and total dissolved nitrogen (TDN). Following statistical analyses of one-way ANOVA, results show significantly higher concentrations of NH4-N and TDN in the east island region (29404.71mg/kg (p3-N data, values were much lower than NH4-N. Comparison to similar studies performed in river floodplains, wetlands, and retention basins demonstrate that the Dew Drop pond has high nutrient concentrations, indicating the potential for continuation of eutrophication, and this is likely decreasing its ability to efficiently store water and remove nutrients from the runoff before entrance to the river. Recommendations include the dredging of the pond to remove nutrient stored sediments, as well as planting a sustainable and effective buffer zone of native, perennial grasses and shrubs to limit the runoff of excess nutrients into the pond and erosion of the banks