Miracle-dz/UniFAR-FTUs huggingface dataset:
Determining Membrane Protein Topologies in Single Cells and High‐Throughput Screening Applications

Correct localization and topology are crucial for a protein's cellular function. To determine topologies of membrane proteins, a new technique, called fluorescence protease protection (FPP) assay, has recently been established. The sole requirements for FPP are the expression of fluorescent‐protein fusion proteins and the selective permeabilization of the plasma membrane, permitting a wide range of cell types and organelles to be investigated. Proteins topologies in organelles like endoplasmic reticulum, Golgi apparatus, mitochondria, peroxisomes, and autophagosomes have already been determined by FPP. Here, two different step‐by‐step protocols of the FPP assay are provided. First, we describe the FPP assay using fluorescence microscopy for single adherent cells, and second, we outline the FPP assay for high‐throughput screening applications. Curr. Protoc. Cell Biol. 49:5.7. 1‐5.7. 12. © 2010 by John Wiley & Sons, Inc.
No . E 2011 / 27 Post-crisis cost efficiency of Jamaican banks

Deregulation, re-regulation and continuing globalisation embody an imperative that banks increase efficiency in order to survive. We employ the Simar-Wilson (2007) two-step double bootstrap Data Envelopment Analysis method to measure whether cost efficiency among Jamaican banks has improved between 1999 and 2009 following a number of post-crisis responses aimed at strengthening and improving the sector. Efficiency is extracted from a meta-frontier construction for the full sample period. In addition we conduct tests for unconditional betaand sigma-convergence and overall, the results suggest that there has been a tendency towards improvement in bank efficiency levels for the industry as a whole but there is also evidence that foreign banks show a higher trend improvement in efficiency.
Negative Reward Signals from the Lateral Habenula to Dopamine Neurons Are Mediated by Rostromedial Tegmental Nucleus in Primates

Lateral habenula (LHb) neurons signal negative “reward-prediction errors” and inhibit midbrain dopamine (DA) neurons. Yet LHb neurons are largely glutamatergic, indicating that this inhibition may occur through an intermediate structure. Recent studies in rats have suggested a candidate for this role, the GABAergic rostromedial tegmental nucleus (RMTg), but this neural pathway has not yet been tested directly. We now show using electrophysiology and anatomic tracing that (1) the monkey has an inhibitory structure similar to the rat RMTg; (2) RMTg neurons receive excitatory input from the LHb, exhibit negative reward-prediction errors, and send axonal projections near DA soma; and (3) stimulating this structure inhibits DA neurons. Surprisingly, some RMTg neurons responded to reward cues earlier than the LHb, and carry “state-value” signals not found in DA neurons. Thus, our data suggest that the RMTg translates LHb reward-prediction errors (negative) into DA reward-prediction errors (positive), while transmitting additional motivational signals to non-DA networks.
Inverse relationship of interleukin-6 and mast cells in children with inflammatory and non-inflammatory abdominal pain phenotypes.

AIM To investigate interleukin-6 (IL-6), mast cells, enterochromaffin cells, 5-hydroxytryptamine, and substance P in the gastrointestinal mucosa of children with abdominal pain. METHODS Formalin-fixed paraffin-embedded gastrointestinal biopsy blocks from patients (n = 48) with non-inflammatory bowel disease (irritable bowel syndrome and functional abdominal pain) and inflammatory bowel disease were sectioned and stained for IL-6, mast cells, enterochromaffin cells, 5-hydroxytryptamine, and substance P. All children had chronic abdominal pain as part of their presenting symptoms. Biopsy phenotype was confirmed by a pathologist, blinded to patient information. Descriptive statistics, chi-square, and independent sample t tests were used to compare differences between the inflammatory and non-inflammatory groups. RESULTS The cohort (n = 48), mean age 11.9 years (SD = 2.9), 54.2% females, 90% Caucasian, was comprised of a non-inflammatory (n = 26) and an inflammatory (n = 22) phenotype. There was a significant negative correlation between substance P expression and mast cell count (P = 0.05, r = -0.373). Substance P was found to be expressed more often in female patient biopsies and more intensely in the upper gastrointestinal mucosa as compared to the lower mucosa. There were significantly increased gastrointestinal mucosal immunoreactivity to IL-6 (P = 0.004) in the inflammatory phenotype compared to non-inflammatory. Additionally, we found significantly increased mast cells (P = 0.049) in the mucosa of the non-inflammatory phenotype compared to the inflammatory group. This difference was particularly noted in the lower colon biopsies. CONCLUSION The findings of this study yield preliminary evidence in identifying biomarkers of undiagnosed abdominal pain in children and may suggest candidate genes for future evaluation.
Lateralization and gender differences in the dopaminergic response to unpredictable reward in the human ventral striatum

Electrophysiological studies have shown that mesostriatal dopamine (DA) neurons increase activity in response to unpredicted rewards. With respect to other functions of the mesostriatal dopaminergic system, dopamine’s actions show prominent laterality effects. Whether changes in DA transmission elicited by rewards also are lateralized, however, has not been investigated. Using [11C]raclopride‐PET to assess the striatal DA response to unpredictable monetary rewards, we hypothesized that such rewards would induce an asymmetric reduction in [11C]raclopride binding in the ventral striatum, reflecting lateralization of endogenous dopamine release. In 24 healthy volunteers, differences in the regional D2/3 receptor binding potential (ΔBP) between an unpredictable reward condition and a sensorimotor control condition were measured using the bolus‐plus‐constant‐infusion [11C]raclopride method. During the reward condition subjects randomly received monetary awards while performing a ‘slot‐machine’ task. The ΔBP between conditions was assessed in striatal regions‐of‐interest and compared between left and right sides. We found a significant condition × lateralization interaction in the ventral striatum. A significant reduction in binding potential (BPND) in the reward condition vs. the control condition was found only in the right ventral striatum, and the ΔBP was greater in the right than the left ventral striatum. Unexpectedly, these laterality effects appeared to be partly accounted for by gender differences, as our data showed a significant bilateral BPND reduction in women while in men the reduction reached significance only in the right ventral striatum. These data suggest that DA release in response to unpredictable reward is lateralized in the human ventral striatum, particularly in males.
Infrastructure and Ethnographic Practice

By bringing together science studies, information science and ethnographic fieldwork in interdisciplinary research the author argues for the relevance of ethnographic practices when studying information systems as infrastructures of communication. Ethnographic fieldwork focuses attention on fringes and materialities of infrastructures and renders the researcher able to read the invisible layers of control and access, to understand the changes in the social orderings that are brought about by information technology. Numerous examples and personal accounts of studies of infrastructures with ethnographic tools show how paying analytical attention to mundane aspects of information infrastructures helps to understand the consequences of the imbrication of infrastructure and human organization.
Epigenetics and Oxidative Stress in Aging

Aging is a multifactorial process characterized by the progressive loss of physiological functions, leading to an increased vulnerability to age-associated diseases and finally to death. Several theories have been proposed to explain the nature of aging. One of the most known identifies the free radicals produced by the mitochondrial metabolism as the cause of cellular and DNA damage. However, there are also several evidences supporting that epigenetic modifications, such as DNA methylation, noncoding RNAs, and histone modifications, play a critical role in the molecular mechanism of aging. In this review, we explore the significance of these findings and argue how the interlinked effects of oxidative stress and epigenetics can explain the cause of age-related declines.
Colloquium: Coherently controlled adiabatic passage

The merging of coherent control (CC) and adiabatic passage (AP) and the type of problems that can be solved using the resulting coherently controlled adiabatic passage (CCAP) method are discussed. The discussion starts with the essence of CC as the guiding of a quantum system to arrive at a given final state via a number of different quantum pathways. The guiding is done by ``tailor-made'' external laser fields. Selectivity in a host of physical and chemical processes is shown to be achieved by controlling the interference between such quantum pathways. The AP process is then discussed, in which a system is navigated adiabatically along a single quantum pathway, resulting in a complete population transfer between two energy eigenstates. The merging of the two techniques (CCAP) is shown to achieve both selectivity and completeness. Application of CCAP to the solution of the nondegenerate quantum control problem is first discussed and shown that it is possible to completely transfer population from an initial wave packet of arbitrary shape, composed of a set of nondegenerate energy eigenstates, to a final arbitrary wave packet, also composed of nondegenerate states. The treatment is then extended to systems with degenerate states and shown how to induce isomerization between the broken-symmetry local minima of a Jahn-Teller ${\mathrm{Al}}_{3}\mathrm{O}$ molecule. These approaches can be further generalized to situations with many initial, intermediate, and final states and applied to quantum coding and decoding problems. CCAP is then applied to cyclic population transfer (CPT), induced by coupling three states of a chiral molecule in a cyclic fashion, $\ensuremath{\mid}1⟩\ensuremath{\leftrightarrow}\ensuremath{\mid}2⟩\ensuremath{\leftrightarrow}\ensuremath{\mid}3⟩\ensuremath{\leftrightarrow}\ensuremath{\mid}1⟩$. Interference between two adiabatic pathways in CPT allows for a complete population transfer, coupled with multichannel selectivity, by virtue of its phase sensitivity. CPT can be used to show the purification of mixtures of right-handed and left-handed chiral molecules. Finally, quantum-field coherent control is introduced, where CCAP is extended to the use of nonclassical light. This emerging field may be used to generate new types of entangled radiation-matter states.
Cardiac Troponin T Measured by a Highly Sensitive Assay Predicts Coronary Heart Disease, Heart Failure, and Mortality in the Atherosclerosis Risk in Communities Study

Background— We evaluated whether cardiac troponin T (cTnT) measured with a new highly sensitive assay was associated with incident coronary heart disease (CHD), mortality, and hospitalization for heart failure (HF) in a general population of participants in the Atherosclerosis Risk in Communities (ARIC) Study. Methods and Results— Associations between increasing cTnT levels and CHD, mortality, and HF hospitalization were evaluated with Cox proportional hazards models adjusted for traditional CHD risk factors, kidney function, high-sensitivity C-reactive protein, and N-terminal pro–B-type natriuretic peptide in 9698 participants aged 54 to 74 years who at baseline were free from CHD and stroke (and HF in the HF analysis). Measurable cTnT levels (≥0.003 &mgr;g/L) were detected in 66.5% of individuals. In fully adjusted models, compared with participants with undetectable levels, those with cTnT levels in the highest category (≥0.014 &mgr;g/L; 7.4% of the ARIC population) had significantly increased risk for CHD (hazard ratio=2.29; 95% confidence interval, 1.81 to 2.89), fatal CHD (hazard ratio=7.59; 95% confidence interval, 3.78 to 15.25), total mortality (hazard ratio=3.96; 95% confidence interval, 3.21 to 4.88), and HF (hazard ratio=5.95; 95% confidence interval, 4.47 to 7.92). Even minimally elevated cTnT (≥0.003 &mgr;g/L) was associated with increased risk for mortality and HF (P<0.05). Adding cTnT to traditional risk factors improved risk prediction parameters; the improvements were similar to those with N-terminal pro–B-type natriuretic peptide and better than those with the addition of high-sensitivity C-reactive protein. Conclusions— cTnT detectable with a highly sensitive assay was associated with incident CHD, mortality, and HF in individuals from a general population without known CHD/stroke.
Therapeutic bronchoscopy with immediate effect: laser, electrocautery, argon plasma coagulation and stents

Minimally invasive diagnostic and therapeutic approaches in medicine have been applied for a more selective and tailored approach to reduce patients' morbidity and mortality. The efficacy of interventional pulmonology for palliation of patients with central airways obstruction has been established and its curative potential for intralesional treatment of early cancer has raised great interest in current screening programmes. This is due to the fact that surgical resection and systemic nodal dissection as the gold standard is relatively morbid and risky, especially when dealing with individuals with limited functional reserves due to smoking-related comorbidities, such as chronic obstructive pulmonary disease. Furthermore, such comorbidities have been proven to harbour early stage lesions of several millimetres in size without involvement of nodal disease that may be amenable to local bronchoscopic treatment. Therefore, the success of minimally invasive strategies for palliation and treatment with curative intent strongly depends on the diligent identification of the various factors in lung cancer management, including full comprehension of the limits and potential of each particular technique. Maximal preservation of quality of life is a prerequisite in successfully dealing with individuals at risk of harbouring asymptomatic early lung cancer, to prevent aggressive surgical diagnostic and therapeutic strategies since overdiagnosis remains an issue that is heavily debated. In the palliative setting of alleviating central airway obstruction, laser resection, electrocautery, argon plasma coagulation and stenting are techniques that can provide immediate relief, in contrast to cryotherapy, brachytherapy and photodynamic therapy with delayed effects. With curative intent, intraluminal techniques that easily coagulate early stage cancer lesions will increase the implementation of interventional pulmonology for benign and relatively benign diseases, as well as early cancer lesions and its precursors at their earliest stage of disease.
FIGO consensus guidelines on placenta accreta spectrum disorders: Prenatal diagnosis and screening ,

Recent population studies have shown that placenta accreta spectrum (PAS) disorders remain undiagnosed before delivery in half to two-thirds of cases. In a series from specialist diagnostic units in the USA, around onethird of cases of PAS disorders were not diagnosed during pregnancy. Maternal mortality and morbidity are reduced when women with PAS disorders, particularly the invasive forms—placenta increta or percreta—deliver in a center of excellence by a multidisciplinary care team with experience in managing the surgical risks and perioperative challenges presented by these disorders. Transfer to a center of excellence, however, relies on both recognition of the women at risk of PAS disorders and on accurate prenatal diagnosis.
CD4 nadir is a predictor of HIV neurocognitive impairment in the era of combination antiretroviral therapy

Objective:Despite immune recovery in individuals on combination antiretroviral therapy (CART), the frequency of HIV-associated neurocognitive disorders (HANDs) remains high. Immune recovery is typically achieved after initiation of ART from the nadir, or the lowest historical CD4. The present study evaluated the probability of neuropsychological impairment (NPI) and HAND as a function of CD4 nadir in an HIV-positive cohort. Methods:One thousand five hundred and twenty-five HIV-positive participants enrolled in CNS HIV Antiretroviral Therapy Effects Research, a multisite, observational study that completed comprehensive neurobehavioral and neuromedical evaluations, including a neurocognitive test battery covering seven cognitive domains. Among impaired individuals, HAND was diagnosed if NPI could not be attributed to comorbidities. CD4 nadir was obtained by self-report or observation. Potential modifiers of the relationship between CD4 nadir and HAND, including demographic and HIV disease characteristics, were assessed in univariate and multivariate analyses. Results:The median CD4 nadir (cells/&mgr;l) was 172, and 52% had NPI. Among impaired participants, 603 (75%) had HAND. Higher CD4 nadirs were associated with lower odds of NPI such that for every 5-unit increase in square-root CD4 nadir, the odds of NPI were reduced by 10%. In 589 virally suppressed participants on ART, higher CD4 nadir was associated with lower odds of NPI after adjusting for demographic and clinical factors. Conclusion:As the risk of NPI was lowest in patients whose CD4 cell count was never allowed to fall to low levels before CART initiation, our findings suggest that initiation of CART as early as possible might reduce the risk of developing HAND, the most common source of NPI among HIV-infected individuals.
The role of set-shifting ability in differentiating between subgroups of female violent offenders

Abstract The aim of the present study was to extend the current understanding of the relationship between executive functions and violent crime in women. This was done by investigating whether set-shifting ability differentiated between subgroups of female violent offenders, with regard to criminal diversity and frequency of violent offenses. The study was conducted in a nationwide sample of 42 women imprisoned for violent crimes. Important characteristics common in violent offenders, such as certain personality disorders and substance abuse, were taken into account. The results indicated that offenders who only committed violent crimes had poorer set-shifting ability and less frequently personality disorders than offenders who had also committed non-violent crimes. Set-shifting ability was not connected to violent crime frequency.
Scalable Production of Graphene-Based Wearable E-Textiles

Graphene-based wearable e-textiles are considered to be promising due to their advantages over traditional metal-based technology. However, the manufacturing process is complex and currently not suitable for industrial scale application. Here we report a simple, scalable, and cost-effective method of producing graphene-based wearable e-textiles through the chemical reduction of graphene oxide (GO) to make stable reduced graphene oxide (rGO) dispersion which can then be applied to the textile fabric using a simple pad-dry technique. This application method allows the potential manufacture of conductive graphene e-textiles at commercial production rates of ∼150 m/min. The graphene e-textile materials produced are durable and washable with acceptable softness/hand feel. The rGO coating enhanced the tensile strength of cotton fabric and also the flexibility due to the increase in strain% at maximum load. We demonstrate the potential application of these graphene e-textiles for wearable electronics with activity monitoring sensor. This could potentially lead to a multifunctional single graphene e-textile garment that can act both as sensors and flexible heating elements powered by the energy stored in graphene textile supercapacitors.
Banques et Réseaux Sociaux. L'intégration des réseaux dans la stratégie marketing d'une banque

Les reseaux sociaux sont aujourd’hui utilises par de nombreuses entreprises, le secteur bancaire compris. L’objectif de ce memoire est de montrer en quoi l’integration des reseaux sociaux dans la strategie marketing d’une banque peut se reveler pertinente. Les enjeux de cette integration sont explicites, les modalites en lien avec l’utilisation de ces outils sont clarifiees et les difficultes montrees. Ce memoire a pour objectif de mettre en avant les bonnes pratiques a utiliser sur les reseaux sociaux ainsi de proposer des preconisations.
Worldwide Genetic Features of HIV-1 Env &agr;4&bgr;7 Binding Motif: The Local Dissemination Impact of the LDI Tripeptide

Background:HIV-1 gp120 binds to integrin &agr;4&bgr;7, a homing receptor of lymphocytes to gut-associated lymphoid tissues. This interaction is mediated by the LDI/V tripeptide encoded in the V2-loop. This tripeptide mimics similar motifs in mucosal addressin cellular adhesion molecule (MAdCAM) and vascular CAM (VCAM), the natural ligands of &agr;4&bgr;7. In this study, we explored the association of V2-loop LDI/V mimotopes with transmission routes and patterns of disease progression in HIV-infected adult and pediatric patients. HIV-1 env sequences available in the Los Alamos HIV Sequence database were included in the analyses. Methods:HIV-1 V2-loop sequences generated from infected adults and infants from South and Southeast Brazil, and also retrieved from the Los Alamos database, were assessed for &agr;4&bgr;7 binding tripeptide composition. Chi-Square/Fisher Exact test and Mann Whitney U test were used for tripeptide comparisons. Shannon entropy was assessed for conservancy of the &agr;4&bgr;7 tripeptide mimotope. Results:We observed no association between the tripeptide composition or conservation and virus transmission route or disease progression. However, LDI was linked to successful epidemic dissemination of HIV-1 subtype C in South America, and further to other expanding non-B subtypes in Europe and Asia. In Africa, subtypes showing increased LDV prevalence evidenced an ongoing process of selection toward LDI expansion, an observation also extended to subtype B in the Americas and Western Europe. Conclusions:The V2-loop LDI mimotope was conserved in HIV-1C from South America and other expanding subtypes across the globe, which suggests that LDI may promote successful dissemination of HIV at local geographic levels by means of increased transmission fitness.