bluuebunny/crossref_metadata_2025_split huggingface dataset:
Surface properties of illite-smectite minerals as detected by interactions with rhodamine 6G dye
Authors: Šucha V. , Czímerová A. , Bujdák J. 
Published: August 2009

AbstractInteractions between smectite clay minerals and various organic dyes have been studied extensively, but little information has accumulated from dye interactions with mixed-layer illite-smectite (I-S) minerals, especially regarding relationships with clay layer expandability, layer charge, particle size/shape, and molecular aggregation of organic dye molecules. The purpose of this study was to investigate the surface interactions of a set of mixed-layer illite-smectites from different geological environments with Rhodamine 6G dye. The samples used have different amounts of expandable smectite interlayers, different particle size and/or shape, and different layer-charge density at the surface. Five smectites with differences in layer charge and some non-expandable layer silicates were also tested. The interactions detected by UV-vis spectroscopy show no reaction between R6G and non-expandable minerals (kaolinite, mica), and intense reactions forming H-aggregates and monomers with smectites and illite-smectites. The intensity of H-aggregate formation increases with increase in the layer charge of smectites. Mixed-layer illite-smectites interact with R6G more intensely than do smectites. H-aggregate and monomer formation increases with the illitization process for randomly ordered illite-smectites (R = 0) and decreases in the course of illitization for the ordered illite-smectites (R > 0).
Near-infrared spectroscopic analysis of acid-treated organo-clays
Authors: Madejová Jana , Pálková Helena , Pentrák Martin , Komadel Peter 
Published: August 2009

AbstractThe potential use of near-infrared (NIR) spectroscopy as a characterization tool for organo-clays would be a great asset but little work has been done in this regard because the application of NIR to clay mineral studies is a relatively new phenomenon. The purpose of this study was to use NIR spectroscopy to investigate the effect of alkylammonium cations on the acid dissolution of a high-charge montmorillonite (SAz-1). Detailed analysis of the spectra of Li+-, TMA+- (tetramethylammonium), and HDTMA+- (hexadecyltrimethylammonium) saturated SAz-1 montmorillonite in the NIR region was achieved by comparing the first overtone (2ν) and combination (ν+δ) bands of XH groups (X = O, C) with the fundamental stretching (ν) and bending (δ) vibrations observed in the mid-infrared (MIR) region. Comprehensive analysis of the vibrational modes of CH3-N, CH3-C, and -CH2-C groups of TMA+ and HDTMA+ cations detected in the MIR and NIR regions was also performed. Both MIR and NIR spectra demonstrated that exchange of Li+ by TMA+ only slightly improved the resistance of SAz-1 layers to dissolution in 6 M HCl at 80°C, while exchange by the larger HDTMA+ cations almost completely protected the montmorillonite layers from acid attack. Use of NIR spectra in reaching these conclusions was crucial. Only in the NIR region could the creation of SiOH groups be monitored, which is an important indicator of the acidification of the montmorillonite surface. The OH-overtone region in the spectra of Li-SAz-1 and TMA-SAz-1 revealed that the SiOH band near 7315 cm−1 increases in intensity with enhanced acid treatment. In contrast, no SiOH groups were identified in the NIR spectra of HDTMA-SAz-1 treated in HCl, indicating that HDTMA+ completely covers the inner and outer surfaces of the montmorillonite and hinders access ofprotons to the Si-O− bonds created upon acid treatment.
Pediatric Brain Natriuretic Peptide Concentrations Vary with Age and Sex and Appear to Be Modulated by Testosterone
Authors: Saenger Amy K , Dalenberg Daniel A , Bryant Sandra C , Grebe Stefan K , Jaffe Allan S 
Published: August 2009

Abstract
Background: Natriuretic peptide concentrations in adults require age- and sex-specific reference intervals for optimal interpretation. Females have higher natriuretic peptide concentrations, and hypotheses suggest that estrogen may be responsible. This study sought to determine the influence of hormone modulation on N-terminal probrain natriuretic peptide (NT-proBNP) by using a pediatric cohort. Children/adolescents typically have rapid hormone changes during puberty, making them an ideal group to study.
Methods: We selected 759 specimens (303 male, 456 female; ages 2 months to 18 years, mean 13 years) obtained from the Mayo Clinic Pediatric Residual Specimen Bank. We measured NT-proBNP, sex hormone–binding globulin (SHBG), estradiol, and testosterone by immunoassays or LC-MS/MS and calculated free testosterone. We performed univariate and multivariate analyses to investigate the significance of NT-proBNP with each hormone.
Results: Reference values demonstrated a sex difference and sequential age differences in females. Univariate modeling of the hormones with NT-proBNP revealed an independent inverse association of NT-proBNP with testosterone, a direct association with SHBG, and no significant association with estradiol. Multivariate modeling confirmed a strong association of testosterone and SHBG with NT-proBNP. Correlation of hormones with NT-proBNP retained greater significance than either age or sex.
Conclusions: In pediatric patients, NT-proBNP is independently associated with both testosterone and SHBG hormone concentrations. Measurements of testosterone are inversely associated with NT-proBNP, and estrogens are marginally associated with NT-proBNP in males but not females, suggesting that androgens and not estrogens modulate sex differences notable in natriuretic peptides. Children and adolescents may require an objective assessment of hormones if optimal interpretation of natriuretic peptide concentrations is desired or the concentrations are confounded. .
Television program avoidance and personality
Authors: Böcking Tabea , Fahr Andreas 
Published: August 2009

Abstract
Recent communication research indicates that approach and avoidance constitute two separate yet co-existing processes during media exposure. While many studies address TV approach behavior, little is known about TV avoidance behavior. Furthermore, personality has yet to be linked to avoidance behavior. This study analyzes the influence of personality on TV program avoidance. Data show that the “Big Five” personality characteristics (Neuroticism, Extraversion, Openness, Conscientiousness, Agreeableness) and Risk and Fight Willingness influence program avoidance, albeit to varying degrees. While the specific correlations are discussed in the paper, the results generally reveal that the combination of personality and avoidance has added value in terms of understanding of TV using behavior compared to the frequently analyzed link between personality and approach. For nearly all personality characteristics, data show that the avoidance perspective is more than the inversion of the approach perspective. The findings are discussed with reference to gratification and selectivity research.
Emily Dickinson's Animal Pedagogies
Authors: Boggs Colleen Glenney 
Published: August 2009

E. DickinsonWould you instruct me now?—Emily Dickinson,The Letters of Emily Dickinson(Johnson 449)In 1866 Emily Dickinson Ended a lapse of eighteen months in her correspondence with Thomas Wentworth Higginson by sending him three lines that connect the major concerns of her work: death, subjectivity, and the conditions of knowledge. When Higginson later published these lines in “Emily Dickinson's Letters,” he explained that the poet would on occasion include “an announcement of some event, vast to her small sphere as this,” the death of her dog who had been her companion for sixteen years (450). In measuring Dickinson's loss biographically by the “small sphere” of her life, Higginson sets aside her ability to “wade grief” (Franklin 312) and situates her letter within the sentimental culture of pet keeping, which had transfigured a predominantly agricultural practice (petinitially referred to a lamb) into a staple of genteel domesticity and bourgeois subjectivity (Mason; Grier; Kete; Ritvo; Thomas). Far from participating uncritically in the roles and relations Higginson projects onto her, Dickinson interrogates the formation and gendering of sentimental subjectivity (Dillon; Blackwood) by placing “Carlo died” in relation to the other two lines—the signature and the call for instruction. “E. Dickinson” refers ambiguously to Emily or to her father, Edward Dickinson (Holland 146). The signature pluralizes the subject; it doubles and ultimately obscures “E.”'s gender. This ambiguous subject hinges on the animal's death as a scene of pedagogy: it stands in the liminal space between the announcement of Carlo's death and the request: “Would you instruct me now?”
Romance Captivities in the Context of Crusade: The Prose Lancelot
Authors: McCracken Peggy 
Published: August 2009

The Taking of captives was a common practice in crusade warfare. Although men were more easily ransomed, many women were also taken captive. Women were not combatants on the battlefield, but when the fighting overran crusader camps, women in the camps were likely to be taken. Women were also captured when cities were taken or besieged cities were abandoned by their defenders. Albert of Aachen notes that in 1101 when the crusaders lost the battle at Paphlagonia, they left the undefended women to be captured by their enemies:The Christians left their tents and all their equipment with all their wagons, with their delicate and beloved wives, with all the goods which are needed by so many nobles and so great an army…. The Turks … cruelly attacked these noble women and eminent matrons, seized them wickedly and held them in fetters, sending over a thousand into barbarous lands where the language was unknown; they plundered them like dumb animals and sent them into perpetual exile … as if they were in a cage or prison. (qtd. in Friedman, “Captivity” 123)
Medieval Mediterranean Literature
Authors: Kinoshita Sharon 
Published: August 2009

Always historicize!—Fredric Jameson,The Political UnconsciousEurocentricity is a choice, not a viewpoint imposed by history. There are roads out of antiquity that do not lead to the Renaissance; and although none avoids eventual contact with the modern West's technological domination, the rapidly changing balance of power in our world is forcing even Western scholars to pay more attention to non-Latin perspectives on the past.—Garth Fowden,Empire to CommonwealthThe last decade or so has seen an explosion of interest in “mediterranean studies.” a half century after the original publication of Fernand Braudel'sLa Méditerranée et le monde méditerranéen à l'époque de Philippe II(1949), scholars in a number of disciplines have once again found the Mediterranean a productive category of analysis, as evidenced in a proliferation of conferences, edited volumes, journals, and study centers. This renewal of Mediterranean studies is part of an upsurge of interest in “oceanic studies,” or, alternatively, “the new thalassology” In recent years, as Kären Wigen writes,[h]istorians of science have documented the discovery of longitude and the plumbing of underwater depths; historians of ideas have mapped the conceptual geographies of beaches, oceans, and islands; historians of labor and radical politics have drawn arresting new portraits of maritime workers and pirates; historians of business have tracked maritime commerce; historians of the environment have probed marine and island ecologies; and historians of colonial regimes and anticolonial movements alike have asserted the importance of maritime arenas of interaction. (717)In the field of medieval literature, on the other hand, “Mediterranean studies” has found much less purchase. An MLA database search for the keywords “Mediterranean” and “medieval” or “Middle Ages” yields a total of thirty-two entries, over half of which treat topics in intellectual or art history. Taking that asymmetry as a point of departure, this essay explores the different ways “medieval Mediterranean literature” might be conceived; how it would relate to the study of the medieval Mediterranean in other disciplines; and what linguistic, thematic, and theoretical modifications or challenges it would offer to the field of literature as currently configured.
The Prehistory of the Book
Authors: Brantley Jessica 
Published: August 2009

Tout, dans l'inscription littéraire médiévale, paraît échapper à la conception moderne du texte, à la pensée textuaire.—Bernard Cerquiglini,Éloge de la variante(42)Everything about medieval literary inscription seems to elude the modern conception of the text, of textual thought.The history of the book is everywhere. Intersecting with the thoroughgoing historicism that has dominated scholarly conversation in the last several decades, the study of material texts has flourished in all fields of literary study. An already vast bibliography is growing exponentially as graduate courses in the history of the book proliferate, universities establish centers for those who study material texts, presses publish series dedicated to book history, and more and more scholars recognize the fascination of studying anything “… and the book.” This field of inquiry has been newly codified, not only within numerous institutional structures but also in the most etymological sense, forcodifyultimately derives, throughcode, fromcodex.Scholars of book history are eager to excavate the codes that are embedded within the codex—that is, more generally, the systems of thought that are both revealed and created by the physical structures through which ideas are expressed. Their true subject is neither the disembodied poem floating free of its material support nor the nuts and bolts of quiring and print runs but “the sociology of texts,” in D. F. McKenzie's memorable phrase (Bibliography). The history of the book thus offers scholars their own kind of system, for it draws methodologies together with theories in a particularly compelling way.
Conversion and Coercion in American Prisons
Authors: Rollin Roger B. 
Published: August 2009

PMLA invites members of the association to submit letters, printed and double-spaced, that comment on articles in previous issues or on matters of general scholarly or critical interest. The editor reserves the right to reject or edit Forum contributions and offers the PMLA authors discussed in published letters an opportunity to reply. Submissions of more than one thousand words are not considered. The journal omits titles before persons' names and discourages endnotes and works-cited lists in the Forum. Letters should be addressed to PMLA Forum, Modern Language Association, 26 Broadway, 3rd floor, New York, NY 10004-1789.What obligations does literary scholarship have to its society, culture, and laws? The question arises in Tanya Erzen's “Religious Literacy in the Faith-Based Prison” (123.3 [2008]: 659–64). The problems with this account of Florida's Lawtey Correctional Institution and its religious-right rehabilitation program begin with the essay's title. One would take “religious literacy” to mean something like “competence in religious history and/or religious doctrine,” but in this essay it does not: for here “religious literacy” is a euphemism for total immersion in and complete acceptance of the Southern Baptist belief system. The author calls such brainwashing “religious self-knowledge” (660), though it seems aimed at the obliteration of any vestiges of selfhood. Even the phrase “faith-based prison” is a smokescreen: “faith,” a term that in our highly religious and religiously diverse culture has generally positive associations, here conceals the ugly truth that the only faith that counts at Lawtey is fundamentalist Christianity.
Psychiatric Morbidity and its Effect on the Quality of Life of Patients with Chronic Hepatitis B and Hepatitis C
Authors: Özkan Mine , Çorapçioglu Aytül , Balcioglu Ibrahim , Ertekin Erhan , Khan Sila , Özdemir Samuray , Karayün Deniz , Ünsalver Bariş Önen , Kocaman Nazmiye , Kaymakglu Sabahattin , Köroglu Gültürk 
Published: August 2009

Objective:The primary aim of our study was to determine the prevalence of psychiatric morbidity in a cohort of consecutive chronic hepatitis patients not receiving antiviral therapy. The secondary aim of our study was to determine if psychiatric morbidity, type of hepatitis, and the level of depression correlated with health-related quality of life (HRQL).Methods:The study was conducted in collaboration with Hepatology and Infectious Disease Clinics at three-major university hospitals. One hundred seven patients who met the criteria for being diagnosed with either chronic hepatitis B or C, had non-cirrhotic compensated liver disease, had not received antiviral treatment in the preceding 6 months, and had no accompanying physical illness were included in the study. The Structured Clinical Interview for DSM-IV Axis I Disorders, the Short Form — 36 for measuring HRQL, and semi-structured interviews for assessing psychosocial variables were used. Sixty-seven healthy adults formed the control group.Results:43.9% of the patients had hepatitis B, 56.1% hepatitis C. A psychiatric diagnosis was made in 48.6%, of which 15% was depression. No significant difference was found in the rate of psychiatric diagnosis between hepatitis B and hepatitis C patients. Hepatitis B and C patients were found to vary significantly ( p < 0.001) from the control group on all subcategories of quality of life criteria. Psychiatric morbidity (mainly depression) was the major variable on lowering HRQL ( p = 0.000).Conclusions:Chronic hepatitis B and C patients presented a high rate of psychiatric disorder. HRQL was significantly decreased in patients with psychiatric morbidity.
Treatment with TNF-α and IFN-γ alters the activation of SER/THR protein kinases and the metabolic response to IGF-I in mouse c2c12 myogenic cells
Authors: Grzelkowska-Kowalczyk Katarzyna , Wieteska-Skrzeczyńska Wioletta 
Published: August 2009

AbstractThe aim of this study was to compare the effects of TNF-α, IL-1β and IFN-γ on the activation of protein kinase B (PKB), p70S6k, mitogen-activated protein kinase (MAPK) and p90rsk, and on IGF-I-stimulated glucose uptake and protein synthesis in mouse C2C12 myotubes. 100 nmol/l IGF-I stimulated glucose uptake in C2C12 myotubes by 198.1% and 10 ng/ml TNF-α abolished this effect. Glucose uptake in cells differentiated in the presence of 10 ng/ml IFN-γ increased by 167.2% but did not undergo significant further modification upon the addition of IGF-I. IGF-I increased the rate of protein synthesis by 249.8%. Neither TNF-α nor IFN-γ influenced basal protein synthesis, but both cytokines prevented the IGF-I effect. 10 ng/ml IL-1β did not modify either the basal or IGF-I-dependent glucose uptake and protein synthesis. With the exception of TNF-α causing an 18% decrease in the level of PKB protein, the cellular levels of PKB, p70S6k, p42MAPK, p44MAPK and p90rsk were not affected by the cytokines. IGF-I caused the phosphorylation of PKB (an approximate 8-fold increase above the basal value after 40 min of IGF-I treatment), p42MAPK (a 2.81-fold increase after 50 min), and the activation of p70S6k and p90rsk, manifesting as gel mobility retardation. In cells differentiated in the presence of TNF-α or IFN-γ, this IGF-I-mediated PKB and p70S6k phosphorylation was significantly diminished, and the increase in p42MAPK and p90rsk phosphorylation was prevented. The basal p42MAPK phosphorylation in C2C12 cells treated with IFN-γ was high and comparable with the activation of this kinase by IGF-I. Pretreatment of myogenic cells with IL-1β did not modify the IGF-I-stimulated phosphorylation of PKB, p70S6k, p42MAPK and p90rsk. In conclusion: i) TNF-α and IFN-γ, but not IL-1β, if present in the extracellular environment during C2C12 myoblast differentiation, prevent the stimulatory action of IGF-I on protein synthesis. ii) TNF-α- and IFN-γ-induced IGF-I resistance of protein synthesis could be associated with the decreased phosphorylation of PKB and p70S6k. iii) The activation of glucose uptake in C2C12 myogenic cells treated with IFN-γ is PKB independent. iv) The similar effects of TNF-α and IFN-γ on the signalling and action of IGF-I on protein synthesis in myogenic cells could suggest the involvement of both of these cytokines in protein loss in skeletal muscle.
Application of the PTT Model for Capillary Extrusion of Rubber Compounds
Authors: Choi S. H. , Lyu M.-Y. 
Published: August 2009

Abstract
Rubber compounds have high viscoelastic property. One of the viscoelastic behaviors shown in profile extrusion is an extrudate swell and circulation flow at the corner of inside of die. Application of viscoelastic model to a capillary extrusion has been investigated in this study. Experiments and simulations have been performed using Fluidity Tester and commercial computational fluid dynamics (CFD) code, Polyflow respectively. Die swell of rubber compounds in a capillary die were predicted using a non-linear differential viscoelastic model, Phan-Thien and Tanner (PTT) model for various relaxation times and relaxation modes. As relaxation time and number of relaxation mode increase, die swell increases. The results of simulations were compared with the experiment. Pressure and velocity distributions, and circulation flows at the corner of reservoir have been analyzed through computer simulation. Two and three relaxation modes with large range of relaxation time examined in this study showed good agreement with experimental results of die swell and well represented circulation flow at the corner of reservoir in the capillary die.
Response of malignant scalp dermatofibrosarcoma to presurgical targeted growth factor inhibition
Authors: Mattox Austin K. , Mehta Ankit I. , Grossi Peter M. , Cummings Thomas J. , Adamson D. Cory 
Published: August 2009

Dermatofibrosarcoma protuberans (DFSP) is an uncommon, locally aggressive, malignant cutaneous tumor that sparingly presents on the scalp. Dermatofibrosarcomas often result from the formation of a fusion oncogene on translocated or supernumerary ring chromosomes 17 and 22, causing the overexpression of PDGFRβ driven by the COL1A1 promoter. Because of uncertainty surrounding appropriate treatment of aggressive scalp DFSP, the authors performed an extensive review of the available data from a MEDLINE (Ovid) search to describe the clinical presentation and treatment options for this rare tumor. Their search identified 39 different cases, including the illustrative case presented in this study.
Adjuvant therapy for this malignant lesion is not universally established in the literature. In the present case, the authors successfully treated a locally invasive scalp DFSP with presurgical therapy that specifically inhibited the PDGFβ receptor. Imatinib significantly shrank the DFSP tumor mass, reduced hypervascularity, reduced metabolic activity on PET scanning, and permitted a safe gross-total resection. Although wide excision and Mohs micrographic surgery remain the standard surgical treatments for DFSP, the authors illustrate that presurgical chemotherapeutic treatment by imatinib provides a critical adjunct to traditional therapy.