The power of pictures: Vertical picture angles in power pictures

Abstract: Conventional wisdom suggests that variations in vertical picture angle cause the subject to appear more powerful when depicted from below and less powerful when depicted from above. However, do the media actually use such associations to represent individual differences in power? We argue that the diverse perspectives of evolutionary, social learning, and embodiment theories all suggest that the association between verticality and power is relatively automatic and should, therefore, be visible in the portrayal of powerful and powerless individuals in the media. Four archival studies (with six samples) provide empirical evidence for this hypothesis and indicate that a salience power context reinforces this effect. In addition, two experimental studies confirm these effects for individuals producing media content. We discuss potential implications of this effect

Protocol for the detection and nutritional management of high-output stomas

Introduction: An issue of recent research interest is excessive stoma output and its relation to electrolyte abnormalities. Some studies have identified this as a precursor of dehydration and renal dysfunction. A prospective study was performed of the complications associated with high-output stomas, to identify their causes, consequences and management.Materials and methods: This study was carried out by a multidisciplinary team of surgeons, gastroenterologists, nutritionists and hospital pharmacists. High-output stoma (HOS) was defined as output ≥1500 ml for two consecutive days. The subjects included in the study population, 43 patients with a new permanent or temporary stoma, were classified according to the time of HOS onset as early HOS (<3 weeks after initial surgery) or late HOS (≥3 weeks after surgery). Circumstances permitting, a specific protocol for response to HOS was applied. Each patient was followed up until the fourth month after surgery.Results: Early HOS was observed in 7 (16 %) of the sample population of 43 hospital patients, and late HOS, in 6 of the 37 (16 %) non-early HOS population. By type of stoma, nearly all HOS cases affected ileostomy, rather than colostomy, patients. The patients with early HOS remained in hospital for 18 days post surgery, significantly longer than those with no HOS (12 days). The protocol was applied to the majority of EHOS patients and achieved 100 % effectiveness. 50 % of readmissions were due to altered electrolyte balance. Hypomagnesaemia was observed in 33 % of the late HOS patients.Conclusion: The protocol developed at our hospital for the detection and management of HOS effectively addresses possible long-term complications arising from poor nutritional status and chronic electrolyte alteration

Expression of Bcl-2 and Bax in Mouse Renal Tubules during Kidney Development

Bcl-2 and Bax play an important role in apoptosis regulation, as well as in cell adhesion and migration during kidney morphogenesis, which is structurally and functionally related to mitochondria. In order to elucidate the role of Bcl-2 and Bax during kidney development, it is essential to establish the exact location of their expression in the kidney. The present study localized their expression during kidney development. Kidneys from embryonic (E) 16-, 17-, 18-day-old mouse fetuses, and postnatal (P) 1-, 3-, 5-, 7-, 14-, 21-day-old pups were embedded in Epon. Semi-thin serial sections from two E17 kidneys underwent computer assisted 3D tubule tracing. The tracing was combined with a newly developed immunohistochemical technique, which enables immunohistochemistry on glutaraldehyde fixated plastic embedded sections. Thereby, the microstructure could be described in detail, and the immunochemistry can be performed using exactly the same sections. The study showed that Bcl-2 and Bax were strongly expressed in mature proximal convoluted tubules at all time points, less strongly expressed in proximal straight tubules, and only weakly in immature proximal tubules and distal tubules. No expression was detected in ureteric bud and other earlier developing structures, such as comma bodies, S shaped bodies, glomeruli, etc. Tubules expressing Bcl-2 only were occasionally observed. The present study showed that, during kidney development, Bcl-2 and Bax are expressed differently in the proximal and distal tubules, although these two tubule segments are almost equally equipped with mitochondria. The functional significance of the different expression of Bcl-2 and Bax in proximal and distal tubules is unknown. However, the findings of the present study suggest that the mitochondrial function differs between mature proximal tubules and in the rest of the tubules. The function of Bcl-2 and Bax during tubulogenesis still needs to be investigated

Iron Behaving Badly: Inappropriate Iron Chelation as a Major Contributor to the Aetiology of Vascular and Other Progressive Inflammatory and Degenerative Diseases

The production of peroxide and superoxide is an inevitable consequence of aerobic metabolism, and while these particular "reactive oxygen species" (ROSs) can exhibit a number of biological effects, they are not of themselves excessively reactive and thus they are not especially damaging at physiological concentrations. However, their reactions with poorly liganded iron species can lead to the catalytic production of the very reactive and dangerous hydroxyl radical, which is exceptionally damaging, and a major cause of chronic inflammation. We review the considerable and wide-ranging evidence for the involvement of this combination of (su)peroxide and poorly liganded iron in a large number of physiological and indeed pathological processes and inflammatory disorders, especially those involving the progressive degradation of cellular and organismal performance. These diseases share a great many similarities and thus might be considered to have a common cause (i.e. iron-catalysed free radical and especially hydroxyl radical generation). The studies reviewed include those focused on a series of cardiovascular, metabolic and neurological diseases, where iron can be found at the sites of plaques and lesions, as well as studies showing the significance of iron to aging and longevity. The effective chelation of iron by natural or synthetic ligands is thus of major physiological (and potentially therapeutic) importance. As systems properties, we need to recognise that physiological observables have multiple molecular causes, and studying them in isolation leads to inconsistent patterns of apparent causality when it is the simultaneous combination of multiple factors that is responsible. This explains, for instance, the decidedly mixed effects of antioxidants that have been observed, etc...Comment: 159 pages, including 9 Figs and 2184 reference

Towards an articulation of the material and visual turn in organization studies

International audienceContemporary organizations increasingly rely on images, logos, videos, building materials, graphic andproduct design, and a range of other material and visual artifacts to compete, communicate, form identityand organize their activities. This Special Issue focuses on materiality and visuality in the course of objectifyingand reacting to novel ideas, and, more broadly, contributes to organizational theory by articulating theemergent contours of a material and visual turn in the study of organizations. In this Introduction, weprovide an overview of research on materiality and visuality. Drawing on the articles in the special issue, wefurther explore the affordances and limits of the material and visual dimensions of organizing in relation tonovelty. We conclude by pointing out theoretical avenues for advancing multimodal research, and discusssome of the ethical, pragmatic and identity-related challenges that a material and visual turn could pose fororganizational research

An adult patient with a mixed germ cell tumor of the spermatic cord

Tumors of the spermatic cord are very rare, and approximately one half of all primary spermatic cord tumors are malignant. We report the presentation and treatment of an adult (36-year-old) patient with a mixed germ cell tumor that originated in the spermatic cord. No similar cases of mixed tumors of the spermatic cord in adults have been reported. Copyright (C) 2000 Elsevier Science Inc

Hot carrier degradation modeling of short-channel n-FinFETs suitable for circuit applications

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Hot carrier degradation modeling of short-channel n-FinFETs

session posterInternational audienceFigure 1(a) shows the degradation of the transfer characteristics of a typical FinFET with W fin = 10 nm, measured at V d = 0.03 V after HC stress at V stress = 1.8 V for different stress times. The degradation of the device parameters V t , η and on-state drain current is clearly observed. The positive V t shift indicates the built-up of a negative charge in the gate dielectric. The negative charge can result either from electron trapping in the gate dielectric or from generation of acceptor-type interface traps. Figure 1(b) shows the transconductance g m degradation during HC stress. Degradation of the maximum g m is observed attributed to the interface degradation, with a simultaneous parallel g m shift due to charge injection into the gate dielectric bulk defects [4]. Using the relation SS=(kT/q).qD it /C ox for the subthreshold slope SS, where C ox is the gate oxide capacitance and kT is the thermal energy, from figure 1(a) the extracted interface trap density D it changes from 4×10 12 to 5.5×10 12 cm -2 eV -1

Variability analysis &#x2014; Prediction method for nanoscale triple gate FinFETs

session: nanoelectronic devicesInternational audienceWe expanded our analytical compact model for the drain current of undoped or lightly doped nanoscale FinFETs, in order to predict and decompose variability in the electrical characteristics of FinFETs. The model has been evaluated by comparison to TCAD simulated devices with predefined variability. Successful application to experimental data of FinFETs with fin width W fin = 15 nm, gate length L G =30 nm, equivalent gate oxide thickness t ox = 1.7 nm and fin height H fin = 65 nm, has attributed their behavior to geometrical variations (of L G , W fin ) and variability in the metal gate work function (Φ m ). Furthermore, variability of FinFETs having different number of fins (2-50) and fin's pitch (200-1000 nm) has been investigated