bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Social Psychology of Cultural Dynamics: Examining How Cultures Are Formed, Maintained, and Transformed
Authors: Kashima Yoshihisa 
Published: April 2008

AbstractSocial psychological research on culture has mainly focused on differences in psychological processes between cultural groups. However, in the globalizing world today, a complementary approach to culture, a social psychology of culturaldynamics, is emerging as a critical research program. Adopting a neo‐diffusionist meta‐theory of culture, it regards culture as emerging from the processes of cultural transmission in situated social activities, and examines the dynamics involved in the formation, maintenance, and transformation of culture over time. The paper reviews recent research on culture in this perspective and makes suggestions about future directions.
Small‐Group Research in Social Psychology: Topics and Trends over Time
Authors: Wittenbaum Gwen M. , Moreland Richard L. 
Published: April 2008

AbstractResearch on small groups has a long history within social psychology. Unfortunately, interest in studying social processes within small groups has diminished over time despite predictions of its resurgence. Moreland, Hogg, and Hains (1994) computed an index of interest in small groups in the major social psychology journals between 1975 and 1993, finding an increase in the mid 1980s and early 1990s. This increase was due largely to the influence of European and social cognition approaches, which do not focus on intragroup processes. We replicated their procedures through 2006 and found that these trends have persisted. Over half of the group‐related research published from 1975 to 2006 involved intergroup relations (e.g., social identity, stereotyping), whereas other topic areas (i.e., group composition, structure, performance, conflict, and ecology) that involve intragroup processes were largely ignored. The implications of these trends for the fields of small groups and social psychology are discussed.
Absolute Other: Lacan's ‘Big Other’ as Adjunct to Critical Social Psychological Analysis?
Authors: Hook Derek 
Published: April 2008

AbstractLacanian theory offers a series of promising conceptualization – amongst then the notion of the ‘big Other’– which, despite their obvious analytical value, have been curiously neglected by critical social psychology. This paper concerns itself with an overview of this concept of the ‘big Other’ particularly in reference to how it may benefit critical social psychological analyses. The explanatory value of this notion is introduced via a series of Lacanian paradoxes (the Other as vanishing‐point of inter‐subjectivity that cannot itself be subjectivized; the Other as simultaneously ‘inside’ and ‘outside’; the Other as both embodiment of the social substance and yet also the site of the unconscious). I then move on to show how this notion opens conceptual opportunities for social psychological conceptualizations of the formation of the social. I close by demonstrating what the ‘big Other’ offers critical social psychological analyses of power.
Media Studies 2.0? Binge Drinking and Why Audiences Still Matter
Authors: Ruddock Andy 
Published: April 2008

AbstractThe idea of ‘audience’ no longer appears to suit media studies. Conceiving the public as sponges for information and entertainment may have worked in the television age. But not so the computer, mobile phone, iPod era. Increasingly, it appears that the public amuse and inform themselves, using media to create and circulate their own content. This presents media scholars with a considerable challenge, as outlined in David Gauntlett's announcement of ‘Media Studies 2.0’. One goal of the new discipline is to dispense with ‘audience’ as a meaningful category. This essay will argue that this is a rhetorical shift only possible because of audience research. Additionally, in describing a study of young student drinkers, the essay will argue that traditional, ‘receiver’ definitions of audience offer an important means for the public to enter policy debates on binge culture. Abandoning audience thus also means ignoring media issues that the public feel are important.
Older Adults and Their Vulnerabilities to the Exposure of Violence
Authors: Peguero Anthony A. , Lauck Amanda M. 
Published: April 2008

AbstractAccording to US Census Bureau projections, there will be an estimated 72 million people over the age of 65 in the USA by the year 2030. Exposure to violence and crime victimization has serious physical, emotional, mental, and economic consequences for the growing older population in the USA. It should thus come as no surprise that much sociological attention has focused more on examining the correlates of violence for the older American population. We intend to provide an overview of the typologies, empirical research, and the pertinent factors associated with older people and their exposure to violence. We then discuss necessity to further research and our understanding of the important social problem of the exposure of violence for older people in the USA. In conclusion, implications of research findings of how to address the vulnerabilities of older people in relationship to their exposure to violence are discussed.
Consent and Informed Consent: Their Ongoing Evolutions in Clinical Care and Research on Humans
Authors: Mazur Dennis J. 
Published: April 2008

AbstractThe dual concepts of ‘consent’ and ‘informed consent’ continue to have three evolutions. The primary evolution of consent in the patient–physician relationship began in Great Britain in 1767 in the British case, Slater v. Baker and Stapleton, in the judge‐made law of consent. The term ‘informed consent’ within the patient–physician relationship entered the judicial lexicon in the 1957 California appellate case, Salgo v. Leland Stanford Junior University. In its second evolution within research on humans following the Nuremberg trials that included experimental atrocities on humans, there is a key focus on clarifying the purpose of research and specifying the reasons for the need for an even more extensive risk disclosure to individuals considering volunteering for study participation. This second evolution continues with the further refinement of the Declaration of Helsinki and, within the USA, a focus on the Belmont Report. In its third evolution in research in the social science, there has been a recognition of problems with informed consent to questionnaire research. When questionnaires involve patients with moderate or severe posttraumatic stress disorder or abused individuals, there needs to be intense consideration focused on how to best protect the participants with these conditions during the questionnaire study.
The Sociology of Expertise: The Distribution of Social Fluency
Authors: Evans Robert 
Published: April 2008

AbstractExpert knowledge is an essential component of modern society. It is also a potentially difficult topic for sociology because of the importance sociology attaches to culture and context. The sociology of science has emphasised the continuity between scientific expertise and more traditional forms of knowledge. Whilst this suggests an increasing ‘democratisation of expertise’ is desirable, it also risks erasing the idea of expertise itself. This might be particularly detrimental for sociology as it restricts the role of sociological inquiry to examining how expert status is attributed rather than understanding what expertise is. This paper describes these developments and contrasts them with other approaches in which expertise appears less important. It concludes by setting out a new approach to expertise that respects the role of culture in generating knowledge but, by stressing the importance of socialisation and experience, argues for a more nuanced conception of expertise as both real and unequally distributed.
Gendered Organizations: Progress and Prospects
Authors: Britton Dana M. , Logan Laura 
Published: April 2008

AbstractIn this paper, we explore the context for the emergence of a theory of gendered organizations and define the basic features of the approach, noting the explosion of scholarship in the area and the now firmly established trend toward understanding gender, race, class, and sexuality as aspects of social structures. We focus on three of the most important emerging areas in research on gendered organizations: the study of intersectionality, the increasing emphasis on the importance of organizational context, and the exploration of mechanisms for organizational change. We conclude by briefly noting prospects for the further development of research on gendered organizations.
Post-exercise hypotension and cardiovascular responses to moderate orthostatic stress in endurance-trained males
Authors: Scott Jessica M. , Esch Ben T.A. , Lusina Sarah-Jane C. , McKenzie Donald C. , Koehle Michael S. , Sheel A. William , Warburton Darren E.R. 
Published: April 2008

We tested the hypothesis that following an acute bout of exercise cardiovascular and cerebrovascular responses to lower-body negative pressure (LBNP) would be altered due to post-exercise hypotension (PEH). Ten healthy, male, endurance-trained athletes (mean age ± SD = 29.6 ± 5) were assessed for cardiovascular and cerebrovascular responses to LBNP following acute bouts of interval and continuous exercise. Mean arterial pressure (MAP), cardiac output, total peripheral resistance, heart rate variability, and total cerebral oxygen index were determined during a baseline LBNP session. These indices were also determined during two other LBNP sessions: following an acute bout of interval exercise, and following an acute bout of continuous exercise. Compared with baseline, MAP was reduced after both exercise conditions, similar to values previously reported (10 mmHg; p < 0.05 vs. pre-exercise). Total peripheral resistance was significantly reduced following both exercise bouts, and heart rate was significantly increased post-exercise (rest: 59.6 ± 11.2; interval: 77.8 ± 12.8; continuous: 80.3 ± 15.2 beats·min–1). Both cardiac output and stroke volume responses to LBNP following exercise were not altered when compared with baseline measurements. Tissue oxygenation during –40 mmHg (interval: 74.31% ± 7.82% vs. continuous: 69.13% ± 5.23%) was significantly lower than during normobaric pressure (interval: 77.14% ± 1.30% vs. continuous: 74.41% ± 0.94%). It appears from these observations that although young, endurance-trained males experience PEH following acute bouts of interval or continuous exercise, this hypotension does not alter the cardiovascular and cerebrovascular responses to a moderate orthostatic stress.
Plasma lipoprotein (a), homocysteine, and other cardiovascular disease (CVD) risk factors in Nigerians with CVD
Authors: Ebesunun M.O. , Agbedana E.O. , Taylor G.O.L. , Oladapo O.O. 
Published: April 2008

Elevated plasma lipoprotein (a) (Lp(a)) and total homocysteine (tHcy) concentrations, as well as fat distributions, are associated with cardiovascular disease (CVD) risk. The purpose of this study was to evaluate plasma Lp(a), tHcy, percentage body fat, anthropometric indices, and blood pressure (BP) and their relationships with each other in well-defined, hospital-based, CVD patients in a Nigerian African community. One hundred seventy patients suffering from hypertensive heart disease, hypertension, ischaemic heart disease, and myocardial infraction with the mean age of 45.3 ± 1.3 years and 58 apparently healthy volunteers with the mean age of 44.8 ±1.2 years were selected. Anthropometric indices and BP were measured. Percentage body fat, body mass index, and waist-to-hip ratio (WHR) were calculated. Plasma Lp(a) and tHcy concentrations were determined. The results showed significant increases in BP, skinfold thickness (SFT) variables, and WHR in all of the CVD patients. Plasma Lp(a) was also significantly increased (p < 0.001), whereas the slight increase in the mean tHcy was not statistically significant. Positive significant correlations were found between systolic BP, triceps, SFT, and percentage body fat (p < 0.01), whereas significant correlations were found between some body composition variables, tHcy, and systolic BP (p < 0.05). Our findings provide supportive evidence for altered plasma Lp(a) concentration in addition to some other traditional CVD risk factors in Nigerians. The role of homocysteine is not well defined.
Relationship between the metabolic syndrome and physical activity energy expenditure: a MONET study
Authors: Karelis Antony D. , Lavoie Marie-Ève , Messier Virginie , Mignault Diane , Garrel Dominique , Prud’homme Denis , Rabasa-Lhoret Rémi 
Published: April 2008

The purpose of this cross-sectional study was to examine the association between the metabolic syndrome (MetS) and physical activity energy expenditure (PAEE) in overweight and obese sedentary postmenopausal women. The study population consisted of 137 overweight and obese sedentary postmenopausal women (age, 57.7 ± 4.8 years; BMI, 32.4 ± 4.6 kg·m–2). Subjects had the MetS if 3 out of the following 5 criteria were met: visceral fat > 130 cm2, high-density lipoprotein (HDL) cholesterol < 1.29 mmol·L–1, fasting triglycerides ≥ 1.7 mmol·L–1, blood pressure ≥ 130/85 mmHg, and fasting glucose ≥5.6 mmol·L–1. We measured (i) body composition (by dual-energy X-ray absorptiometry); (ii) visceral fat (by computed tomography); (iii) insulin sensitivity (using the hyperinsulinemic-euglycemic clamp); (iv) plasma lipids, fasting glucose, and insulin, as well as 2 h glucose during an oral glucose tolerance test; (v) resting blood pressure; (vi) peak oxygen consumption (VO2 peak); (vii) PAEE (using doubly labeled water); and (viii) lower-body muscle strength (using weight-training equipment). Forty-two women (30.7%) had the MetS in our cohort. Individuals without the MetS had significantly higher levels of PAEE (962 ± 296 vs. 837 ± 271 kcal·d–1; p < 0.05), VO2 peak (18.2 ± 3.0 vs. 16.7 ± 3.2 mL·min–1·kg–1; p < 0.05), and insulin sensitivity, as well as significantly lower levels of 2 h glucose and central lean body mass. No differences in total energy expenditure, resting metabolic rate, and muscle strength between groups were observed. Logistic regression analysis showed that 2 h glucose (odds ratio (OR): 1.50 (95% CI 1.17–1.92)), central lean body mass (OR: 1.17 (95% CI 1.05–1.31)), and PAEE (OR: 0.998 (95% CI 0.997–1.000)), but not VO2 peak and (or) muscle strength, were independent predictors of the MetS. Lower levels of PAEE and higher levels of 2 h glucose, as well as central lean body mass, are independent determinants of the MetS in our cohort of overweight and obese postmenopausal women.
Effect of soil microstructure on the compressibility of natural Singapore marine clay
Authors: Low Han-Eng , Phoon Kok-Kwang , Tan Thiam-Soon , Leroueil Serge 
Published: April 2008

The effect of soil microstructure on the compressibility of natural Singapore marine clay is studied in this paper. It was found that natural Singapore marine clay can sustain higher void ratio than reconstituted Singapore marine clay at the same effective stress in one-dimensional compression. This difference is most noticeable between yield stress and two times the yield stress. This void ratio difference is commonly attributed to soil microstructure, and the decrease in this difference at higher stresses is attributed to progressive destructuration. As a consequence of progressive destructuration, the virgin compression curve is nonlinear and the compression index along the virgin compression range is variable, which is only noticeable during the constant rate of strain consolidation test on high-quality samples. In the absence of high-quality samples and constant rate of strain consolidation tests, an empirical method is proposed to obtain a first-order estimation of a nonlinear virgin compression curve using index properties and yield stress. This paper demonstrates that the proposed method works reasonably well with natural Singapore marine clay. The error bound for the predicted compression indices is approximately ±20% of the compression indices measured with constant rate of strain test on high-quality samples.
Influence de l’interaction de la température et de l’activité de l’eau sur la croissance et la production de l’ochratoxine A parAspergillus niger,Aspergillus carbonariusetAspergillus ochraceussur un milieu de base café
Authors: Kouadio Ahou Irène , Lebrihi Ahmed , Agbo Georges N’ zi , Mathieu Florence , Pfohl-Leszkowiz Annie , Dosso Mireille Bretin 
Published: April 2008

Dans cette étude, l’influence de l’interaction de la température et de l’activité de l’eau sur la croissance fongique et la production de l’ochratoxine A sur un milieu de base café a été évaluée. La croissance optimale des trois souches d’ Aspergillus a été observée dans les mêmes conditions écologiques à savoir, 30 °C pour la température et 0,99 pour l’activité de l’eau. Les croissances journalières maximales sont 11,2, 6,92 et 7,22 mm/jour respectivement pour la souche d’Aspergillus niger, d’Aspergillus carbonarius et d’Aspergillus ochraceus. Cependant, les conditions écologiques de production optimale d'ochratoxine A varient selon la souche toxinogène avec comme facteur limitant, l’activité de l’eau. Cette production d’ochratoxine A est inhibée à la température de 42 °C et à l’activité de l’eau de 0,75. La correspondance établie entre les valeurs d’activité de l’eau testées en laboratoire et celles mesurées sur un lot de cerises mûres mis à sécher au soleil montre que les 5 premiers jours de séchage constituent la phase critique de multiplication fongique et de production de l’ochratoxine A. Ainsi, un séchage artificiel des cerises à une température supérieure à 42 °C évitera non seulement la multiplication fongique mais également la contamination de ce produit par l’ochratoxine A.
Effect of soil composition, temperature, indigenous microflora, and environmental conditions on the survival ofEscherichia coliO157:H7
Authors: Vidovic Sinisa , Block Hushton C. , Korber Darren R. 
Published: April 2008

The survival of Escherichia coli O157:H7 in replicate soil microcosms was quantified in 2 types of silty clay loam soil (high carbon and low carbon) under either sterile or nonsterile conditions. Microcosms were held at –21, 4, and 22 °C under constant soil moisture content. Differences existed (P < 0.05) in survival of E. coli O157:H7 in low- and high-carbon soil at all temperatures, indicating an important role of soil composition on the survival of this pathogen. The highest death rate of E. coli O157:H7 in sterile soil occurred in the low-carbon soil at 4 °C, whereas in nonsterile soil the highest death rate was observed in the low-carbon soil at 22 °C. These results suggest that the most lethal effects on E. coli O157:H7 in the sterile system occurred via the synergy of nutrient limitation and cold stress, whereas in the nonsterile system lethality was owing to inhibition by indigenous soil microorganisms and starvation. Results obtained from an in situ field survival experiment demonstrated the apparent sensitivity of E. coli O157:H7 cells to dehydration, information that may be used to reduce environmental spread of this pathogen as well as formulate appropriate waste management strategies.
Chromosomal model for analysis of a long CTG/CAG tract stability in wild-type Escherichia coli and its nucleotide excision repair mutants
Authors: Szwarocka Sylwia T. , Stączek Paweł , Parniewski Paweł 
Published: April 2008

Many human hereditary neurological diseases, including fragile X syndrome, myotonic dystrophy, and Friedreich’s ataxia, are associated with expansions of the triplet repeat sequences (TRS) (CGG/CCG, CTG/CAG, and GAA/TTC) within or near specific genes. Mechanisms that mediate mutations of TRS include DNA replication, repair, and gene conversion and (or) recombination. The involvement of the repair systems in TRS instability was investigated in Escherichia coli on plasmid models, and the results showed that the deficiency of some nucleotide excision repair (NER) functions dramatically affects the stability of long CTG inserts. In such models in which there are tens or hundreds of plasmid molecules in each bacterial cell, repetitive sequences may interact between themselves and according to a recombination hypothesis, which may lead to expansions and deletions within such repeated tracts. Since one cannot control interaction between plasmids, it is also sometimes difficult to give precise interpretation of the results. Therefore, using modified lambda phage (λInCh), we have constructed a chromosomal model to study the instability of trinucleotide repeat sequences in E. coli. We have shown that the stability of (CTG/CAG)68tracts in the bacterial chromosome is influenced by mutations in NER genes in E. coli. The absence of the uvrC or uvrD gene products greatly enhances the instability of the TRS in the chromosome, whereas the lack of the functional UvrA or UvrB proteins causes substantial stabilization of (CTG/CAG) tracts.
Thiosulfate oxidation and mixotrophic growth of Methylobacterium oryzae
Authors: Anandham R. , Indiragandhi P. , Madhaiyan M. , Kim Kyounga , Yim Woojong , Saravanan V.S. , Chung Jongbae , Sa Tongmin 
Published: April 2008

Thiosulfate oxidation and mixotrophic growth with succinate or methanol plus thiosulfate was examined in nutrient-limited mixotrophic condition for Methylobacterium oryzae CBMB20, which was recently characterized and reported as a novel species isolated from rice. Methylobacterium oryzae was able to utilize thiosulfate in the presence of sulfate. Thiosulfate oxidation increased the protein yield by 25% in mixotrophic medium containing 18.5 mmol·L–1of sodium succinate and 20 mmol·L–1of sodium thiosulfate on day 5. The respirometric study revealed that thiosulfate was the most preferable reduced inorganic sulfur source, followed by sulfur and sulfite. Thiosulfate was predominantly oxidized to sulfate and intermediate products of thiosulfate oxidation, such as tetrathionate, trithionate, polythionate, and sulfur, were not detected in spent medium. It indicated that bacterium use the non-S4intermediate sulfur oxidation pathway for thiosulfate oxidation. Thiosulfate oxidation enzymes, such as rhodanese and sulfite oxidase activities appeared to be constitutively expressed, but activity increased during growth on thiosulfate. No thiosulfate oxidase (tetrathionate synthase) activity was detected.