Guerrillas in the [Urban] Midst: Developing and Using Creative Research Methods—Guerrilla Research Tactics

Abstract

This paper explores what we are calling “Guerrilla Research Tactics” (GRT): research methods that exploit emerging mobile and cloud-based digital technologies. We examine some case studies in the use of this technology to generate research data directly from the physical fabric and the people of the city. We argue that GRT is a new and novel way of engaging public participation in urban, place-based research because it facilitates the co-creation of knowledge, with city inhabitants, “on the fly.” This paper discusses the potential of these new research techniques and what they have to offer researchers operating in the creative disciplines and beyond. This work builds on and extends Gauntlett's “new creative methods” (2007) and contributes to the existing body of literature addressing creative and interactive approaches to data collection.     

Cholinergic neurons, learning, and recovery of function.

Two experiments were designed to examine the role of the cholinergic septo-hippocampal projection in spatial and nonspatial learning processes. In Experiment 1 the interaction of individual learning strategies and recovery of function was investigated following medial septal lesions, by assessing individual learning styles and number of trials to recovery on a standard radial eight-arm-maze task. Experiment 2 addressed the relevance of the cholinergic septo-hippocampal pathway in the acquisition of spatially mediated behavior, by employing medial septal lesions, prior to acquisition learning of a modified version of the radial eight-arm-maze task. The data from these two experiments demonstrated that (a) the cholinergic septo-hippocampal projection is important for the acquisition and maintenance of spatial learning strategies, (b) loss of cholinergic function leads to alteration of learning strategies, (c) different learning strategies can be employed to acquire the same behaviors, and (d) the rate of recovery following brain injury can be influenced by preoperative learning strategies. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Isolation and identification of Alicyclobacillus acidocaldarius by 16S rDNA from mango juice and concentrate

In this study we investigate the spoilage of ultra high temperature UHT mango juice as well as a carbonated fruit juice blend to identify organisms contributing to the spoilage. The mango concentrate, the final product, as well as the other ingredients used during manufacturing, were tested for the presence of Alicyclobacillus by polymerase chain reaction (PCR) and sequencing analyses. Microbiological examination of the mango pureé and spoiled fruit juices, using YSG agar [yeast extract 2 g, glucose 1 g, soluble starch 2 g, pH 3.7 (adjust with 2N H₂SO₄), H₂O 1000 mL, bacto agar 15 g] incubated at 55 °C, detected sporeforming, acid dependent and thermotolerant bacteria. The hyper variable region of the 16S rDNA was amplified. The nucleotide sequence of the PCR fragments was determined using the ABI Prism 310 automated DNA sequencer and the collected sequencing data were analysed and compared with the non‐redundant database using NCBI‐BLAST. Alicyclobacillus acidocaldarius were isolated and identified by 16S rDNA gene sequences analyses. The results indicated that the mango purèe, as well as the final product of mango juice and the fruit juice blend, were positive for Alicyclobacillus. The preventative measures of low pH, pasteurization of mango juice and the subsequent use of aseptic packaging were not regarded as sufficient to prevent the outgrowth of Alicyclobacillus spoilage organisms.     

Psychometric evaluation of trauma and posttraumatic stress disorder assessments in persons with severe mental illness.

Interrater reliability, internal consistency, test-retest reliability, and convergent validity were examined for the Trauma History Questionnaire (THQ), the Clinician-Administered Posttraumatic Stress Disorder (PTSD) Scale (CAPS), and the PTSD Checklist (PCL) in 30 clients with severe mental illnesses. Interrater reliability for the THQ and CAPS was high, as was internal consistency of CAPS and PCL subscales. The test-retest reliability of the THQ was moderate to high for different traumas. PTSD diagnoses on the CAPS and PCL showed moderate test-retest reliability. Lower levels of test-retest reliability for PTSD diagnoses were related to psychosis diagnoses and symptoms. However, when more stringent criteria for PTSD were used on the CAPS, it had excellent test-retest reliability across all clients. CAPS and PCL diagnoses of PTSD showed moderate convergent validity. The results support the reliability of trauma and PTSD assessments in clients with severe mental illness. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Bridging distance: Practical and pedagogical implications of virtual Makerspaces

Makerspaces are locations where people with common interests can work on projects, share ideas, tools and expertise to make or create. There is an abundance of “how to” guides and research studies on physical makerspaces, little research focuses on describing the virtual making processes and the experiences therein. This qualitative study explores the experiences of seven participants who engaged in a synchronous virtual makerspace. Meeting once a month over 16 weeks, members of the International Maker Educator Network participated in the making of a robot. This case study describes how the virtual making occurred, the personal experiences of the makers, technology used to support virtual making, and the affordances and inhibitors of virtual making. Data are analysed through the lens of a professional learning community and the People, Means and Activities makerspace framework. The paper concludes with implications for virtual making in practice and future research opportunities.     

Modeling and percept of transcorneal electrical stimulation in humans

Retinal activation via transcorneal electrical stimulation (TcES) in normal humans was investigated by comparing subject perception, model predictions, and brain activation patterns. The preferential location of retinal stimulation was predicted from 3-D admittance modeling. Visual cortex activation was measured using positron emission tomography (PET) and (18)F-fluorodeoxyglucose (FDG). Two different corneal electrodes were investigated: DTL-Plus and ERG-Jet. Modeling results predicted preferential stimulation of the peripheral, inferior, nasal retina during right eye TcES using DTL-Plus, but more extensive activation of peripheral, nasal hemiretina using ERG-Jet. The results from human FDG PET study using both corneal electrodes showed areas of visual cortex activation that consistently corresponded with the reported phosphene percept and modeling predictions. ERG-Jet was able to generate brighter phosphene percept than DTL-Plus and elicited retinotopically mapped primary visual cortex activation. This study demonstrates that admittance modeling and PET imaging consistently predict the perceived location of electrically elicited phosphenes produced during TcES.     

Psychological, social, and health impact of caregiving: A comparison of Black and White dementia family caregivers and noncaregivers.

Psychological, social, and health variables were compared in 175 Black and White family caregivers of patients with dementia and 175 Black and White noncaregivers. Caregivers and noncaregivers did not differ within race on demographic variables. Caregiving was associated with increased depression and decreased life satisfaction only in White families. However, caregiving appears to have similar social consequences for Black and White families, including restriction of social activity and increased visits and support by family from outside of the home. Race, but not caregiving, was associated with physical health variables. Methodological issues in comparing well-being in Black and White caregivers, in particular the importance of including noncaregiving comparison subjects, are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Gas hydrate anti-agglomerant properties of polypropoxylates and some other demulsifiers

Low dosage hydrate inhibitors (LDHIs) have been developed over the last 15 yr as a new gas hydrate control technology for the oil industry, which can be more cost-effective than traditional practices such as the use of thermodynamic inhibitors e.g. methanol and glycols. Two classes of LDHI called kinetic inhibitors (KHIs) and anti-agglomerants (AAs) are already being successfully used in the field. This paper discusses new types of AAs, which are based on surfactants with a high degree of propoxylation. High pressure tests in sapphire cells show that polyamine polypropoxylates and other branched polypropoxylates are able to disperse gas hydrates in a hydrocarbon fluid as long as there is good agitation in the fluids. Formation of an emulsion is not required for this AA effect. Linear, unbranched or low molecular weight polypropoxylates did not perform well under the same conditions, as well as many other surfactant classes including anionic and various polyethoxylated surfactants. Some polyamine polypropoxylates gave weak kinetic hydrate inhibition effects. Addition of kinetic hydrate inhibitors such as polyvinylcaprolactam reduces the performance of polyamine polypropoxylates as AAs.Part of the mechanism for the AA effect of the surfactant polypropoxylates is proposed to rely on their low solubility in both the aqueous and hydrocarbon phases. The surfactant polypropoxylates form a separate layer between the two phases, which coat the dispersed water droplets as they are converted to gas hydrates, keeping them from agglomerating. After shutting in the cell by stopping the stirring for some hours the hydrates can be redispersed again have a high interfacial concentration, were tested as AAs. Some other demulsifiers showed the same anti-agglomeration properties as the polypropoxylates. One demulsifier, Dowfax DM655, an alkylphenol formaldehyde resin alkoxylates, gave good AA performance at up to 16.5 °C subcooling when dosed at 10,000 ppm in synthetic sea water. However, the performance decreased at low salinity (≤ 0.5 wt.%) and at water cuts of 35% or more.