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https://www.readbyqxmd.com/read/29232710/stabilizing-patterns-in-time-neural-network-approach
#1
Nadav Ben-Shushan, Misha Tsodyks
Recurrent and feedback networks are capable of holding dynamic memories. Nonetheless, training a network for that task is challenging. In order to do so, one should face non-linear propagation of errors in the system. Small deviations from the desired dynamics due to error or inherent noise might have a dramatic effect in the future. A method to cope with these difficulties is thus needed. In this work we focus on recurrent networks with linear activation functions and binary output unit. We characterize its ability to reproduce a temporal sequence of actions over its output unit...
December 12, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/29212052/biotic-diversity-of-benthic-macroinvertebrates-at-contrasting-glacier-fed-systems-in-patagonia-mountains-the-role-of-environmental-heterogeneity-facing-global-warming
#2
María Laura Miserendino, Cecilia Brand, Luis B Epele, Cecilia Y Di Prinzio, Guillermo H Omad, Miguel Archangelsky, Oscar Martínez, Adriana M Kutschker
Patagonia is by far the largest glacierized area in South America. However, little is known about ecology, functioning and biodiversity of glacier-fed streams facing global warming. We investigated changes in environmental features and macroinvertebrate communities along a longitudinal gradient of glacier influence of two Patagonian systems that differ in glacier cover magnitude and the spatial sequence of lotic and lentic phases. Both glaciers, Torrecillas (~5.5km2, Torrecillas system) and Cónico (~0.44km2, Baggilt system), are retreating...
December 3, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29197102/evaluation-of-a-computerized-cognitive-behavioural-therapy-programme-mindwise-2-0-for-adults-with-mild-to-moderate-depression-and-anxiety
#3
Sarah Collins, Michael Byrne, James Hawe, Gary O'Reilly
OBJECTIVES: To investigate the acceptability and utility of a newly developed computerized cognitive behavioural therapy (cCBT) programme, MindWise (2.0), for adults attending Irish primary care psychology services. METHOD: Adult primary care psychology service users across four rural locations in Ireland were invited to participate in this study. A total of 60 service users participated in the MindWise (2.0) treatment group and compared to 22 people in a comparison waiting list control group...
December 2, 2017: British Journal of Clinical Psychology
https://www.readbyqxmd.com/read/29194849/somatotopic-effects-of-rtms-in-neuropathic-pain-a-comparison-between-stimulation-over-hand-and-face-motor-areas
#4
N Andre-Obadia, M Magnin, E Simon, L Garcia-Larrea
BACKGROUND: The therapeutic influence of somatotopic matching between pain topography and motor cortex stimulation site for neuropathic pain (NP) remains controversial. METHODS: Thirty-two patients suffering from NP involving the upper limb (n = 20) or the face (n = 12) received two high-frequency rTMS neuronavigated sessions targeting hand and face motor cortical areas, versus placebo. The cortical target was defined by anatomical MRI and EMG responses in all patients, completed in 19 of them by functional MRI...
December 1, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29192872/experience-of-being-young-with-psoriasis-self-management-support-needs
#5
Gitte Susanne Rasmussen, Knud Kragballe, Helle Terkildsen Maindal, Kirsten Lomborg
Psoriasis is a long-term condition with a possibly cumulative life course impairment. Young people struggle to minimize its effects on appearance and functioning. To date, the self-management needs of adolescents suffering from psoriasis have been underinvestigated. Using focus groups and individual interviews, we present an interpretive description of young people's experiences of living with psoriasis, the challenges they face, and the support they need to relieve suffering and come to terms with their condition...
January 2018: Qualitative Health Research
https://www.readbyqxmd.com/read/29181960/a-starch-glycyrretinic-zinc-oxide-and-bisabolol-based-cream-in-the-treatment-of-chronic-mild-to-moderate-atopic-dermatitis-in-children-a-three-center-assessor-blinded-trial
#6
Amelia Licari, Giulia Ruffinazzi, Maria DE Filippo, Riccardo Castagnoli, Alessia Marseglia, Fabio Agostinis, Mario Puviani, Massimo Milani, Gian L Marseglia
BACKGROUND: Atopic dermatitis (AD) is a very common chronic inflammatory and eczematous skin condition characterized by flares and remissions. Skin barrier alteration or dysfunction is the most relevant patogenetic factor. Topical corticosteroids are the mainstay treatment of AD, especially during flare periods. The daily use of emollients and moisturizers is also considered a relevant adjunctive strategy to improve skin barrier function and skin appearance in AD patients. Long-term use of topical corticosteroids is associated with important drawbacks and side effects...
December 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/29178479/face-allotransplantation-for-various-types-of-facial-disfigurements-a-series-of-five-cases
#7
Ömer Özkan, Özlenen Özkan, Mehmetcan Ubur, Necmiye Hadimioğlu, Melike Cengiz, İsmail Afşar
BACKGROUND: The aim of this report is to present our long-term experiences with a series of 5 face-transplanted patients in terms of surgical aspects and postoperative outcomes, and to describe possible salvage strategies in case of difficulties. METHODS: Five patients, 4 receiving full-face transplantation and 1 undergoing partial transplantation at our institution were included. The patients were aged between 19 and 54 years. Two had extensive burn scars to the face, and 3 had suffered gunshot injuries...
November 27, 2017: Microsurgery
https://www.readbyqxmd.com/read/29169365/physician-perspectives-on-the-burden-and-management-of-asthma-in-six-countries-the-global-asthma-physician-survey-gaps
#8
Kenneth R Chapman, David Hinds, Peter Piazza, Chantal Raherison, Michael Gibbs, Timm Greulich, Kenneth Gaalswyk, Jiangtao Lin, Mitsuru Adachi, Kourtney J Davis
BACKGROUND: Despite recognition of asthma as a growing global issue and development of global guidelines, asthma treatment practices vary between countries. Several studies have reported patients' perspectives on asthma control. This study presents physicians' perspectives and strategies for asthma management. METHODS: Physicians seeing ≥4 adult patients with asthma per month in Australia, Canada, China, France, Germany, and Japan were surveyed (N=1809; ≈300 per country)...
November 23, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29155624/functional-and-targeted-lymph-node-imaging-in-prostate-cancer-current-status-and-future-challenges
#9
REVIEW
Harriet C Thoeny, Sebastiano Barbieri, Johannes M Froehlich, Baris Turkbey, Peter L Choyke
Patients with prostate cancer who have regional lymph node (LN) metastases face an increased risk of death from disease and are therefore treated aggressively. Surgical LN dissection is the established method of staging regional nodes; however, this invasive technique carries substantial morbidities and a noninvasive imaging method is needed to reduce or eliminate the need for extended pelvic LN dissections (ePLND). Conventional computed tomography and magnetic resonance (MR) imaging have proven insensitive and nonspecific because both use nodal size criteria, which is notoriously inaccurate...
December 2017: Radiology
https://www.readbyqxmd.com/read/29140527/functional-organization-of-face-processing-in-the-human-superior-temporal-sulcus-a-7t-high-resolution-fmri-study
#10
Anne-Kathrin Schobert, Corrado Corradi-Dell'Acqua, Sascha Frühholz, Wietske van der Zwaag, Patrik Vuilleumier
The superior temporal sulcus (STS) is a major component of the human face perception network, implicated in processing dynamic changeable aspects of faces. However, it remains unknown whether STS holds functionally segregated subdivisions for different categories of facial movements. We used high-resolution functional magnetic resonance imaging (fMRI) at 7T in 16 volunteers to compare STS activation to faces displaying angry or happy expressions, eye-gaze shifts, and lip-speech movements. Combining univariate and multivariate analyses, we show a systematic topological organization within STS, with gaze-related activity predominating in the most posterior and superior sector, speech-related activity in the anterior sector, and emotional expressions represented in the intermediate middle STS...
November 11, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/29123528/janus-faced-neutrophil-extracellular-traps-in-periodontitis
#11
REVIEW
Ljubomir Vitkov, Dominik Hartl, Bernd Minnich, Matthias Hannig
Periodontitis is characterized by PMN infiltration and formation of neutrophil extracellular traps (NETs). However, their functional role for periodontal health remains complex and partially understood. The main function of NETs appears to be evacuation of dental plaque pathogen-associated molecular patterns. The inability to produce NETs is concomitant with aggressive periodontitis. But in cases with exaggerated NET production, NETs are unable to maintain periodontal health and bystander damages occur. This pathology can be also demonstrated in animal models using lipopolysaccharide as PMN activator...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29109846/new-management-in-bilateral-masseter-muscle-hypertrophy
#12
REVIEW
Gabriele Bocchialini, Andrea Castellani, Stefano Negrini, Alessandro Rossi
Bilateral masseter muscle hypertrophy is an alteration in shape and thickness of the masseter muscles that can modify the width of the lower face causing aesthetic and functional problems. A 21-year-old man was referred to the Department of Maxillofacial Surgery at the Civil Hospital in Brescia by his dentist for an evaluation of his facial appearance with a square-face type. To reduce the undesirable facial appearance, a surgical intraoral approach was performed; the procedure includes the bilateral dissection of the masseter muscle, partial lipectomy, and the ostectomy of the mandibular angle assisted by a surgical guide built on a stereolithographic model...
December 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29106373/the-formation-of-the-light-sensing-compartment-of-cone-photoreceptors-coincides-with-a-transcriptional-switch
#13
Janine M Daum, Özkan Keles, Sjoerd Jb Holwerda, Hubertus Kohler, Filippo M Rijli, Michael Stadler, Botond Roska
High-resolution daylight vision is mediated by cone photoreceptors. The molecular program responsible for the formation of their light sensor, the outer segment, is not well understood. We correlated daily changes in ultrastructure and gene expression in postmitotic mouse cones, between birth and eye opening, using serial block-face electron microscopy (EM) and RNA sequencing. Outer segments appeared rapidly at postnatal day six and their appearance coincided with a switch in gene expression. The switch affected over 14% of all expressed genes...
November 6, 2017: ELife
https://www.readbyqxmd.com/read/29104544/sensorimotor-reorganizations-of-arm-kinematics-and-postural-strategy-for-functional-whole-body-reaching-movements-in-microgravity
#14
Thomas Macaluso, Christophe Bourdin, Frank Buloup, Marie-Laure Mille, Patrick Sainton, Fabrice R Sarlegna, Jean-Louis Vercher, Lionel Bringoux
Understanding the impact of weightlessness on human behavior during the forthcoming long-term space missions is of critical importance, especially when considering the efficiency of goal-directed movements in these unusual environments. Several studies provided a large set of evidence that gravity is taken into account during the planning stage of arm reaching movements to optimally anticipate its consequence upon the moving limbs. However, less is known about sensorimotor changes required to face weightless environments when individuals have to perform fast and accurate goal-directed actions with whole-body displacement...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29095513/the-evolution-of-cranial-base-and-face-in-cercopithecoidea-and-hominoidea-modularity-and-morphological-integration
#15
Antonio Profico, Paolo Piras, Costantino Buzi, Fabio Di Vincenzo, Flavio Lattarini, Marina Melchionna, Alessio Veneziano, Pasquale Raia, Giorgio Manzi
The evolutionary relationship between the base and face of the cranium is a major topic of interest in primatology. Such areas of the skull possibly respond to different selective pressures. Yet, they are often said to be tightly integrated. In this paper, we analyzed shape variability in the cranial base and the facial complex in Cercopithecoidea and Hominoidea. We used a landmark-based approach to single out the effects of size (evolutionary allometry), morphological integration, modularity, and phylogeny (under Brownian motion) on skull shape variability...
November 2, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/29072188/body-dysmorphic-disorder-latest-neuroanatomical-and-neuropsychological-findings
#16
K Tasios, I Michopoulos
Body dysmorphic disorder (BDD) is characterized by a preoccupation with a perceived defect or flaw in physical appearance that is not observable or appears slight to others. It leads to severe distress and functional impairment. Cognitive-behavioural and neurobiological similarities to obsessive compulsive disorder (OCD) have led to its newly conceived classification as an obsessive compulsive related disorder (OCRD). In the process of investigating the neurobiology of BDD, neuroimaging and neuropsychological studies have been conducted...
July 2017: Psychiatrikē, Psychiatriki
https://www.readbyqxmd.com/read/29051400/how-to-eliminate-bilateral-cleft-lip-stigmata-30-year-experience
#17
Patricia Cecchi, Maria Ida Rizzo, Oriana Rajabtork Zadeh, Daria Bucci, Mario Zama
PURPOSE: To report a surgical algorithm for the treatment of bilateral cleft lip stigmata. METHODS: The investigators designs a retrospective study composed of patients with bilateral cleft lip stigmata. The surgical approach is on the basis of the severity of the deformity and of course the age of the patient. It consists in Simple scar revision with orbicularis muscle synthesis; Two dermal flaps tunneled in the central vermilion; Abbe flap. The investigators analyzes early and late complications, and performs the evaluation of the cosmetic appearance by a parent or patient himself/herself, a surgeon and a blinded third party observer...
2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/29051396/facial-transplantation-an-update-of-results-and-perspectives-from-tissue-engineering
#18
Francesco Simonacci, Roberto Toni, Edoardo Raposio
BACKGROUND/AIM: Facial transplantation is a revolutionary procedure developed recently, which is indicated if autologous transfers fail to restore human appearance. More than 30 patients have undergone facial transplantation in different centers worldwide. Here, we provide an update on its main anatomical, surgical, immunological, ethical, and follow- up aspects. We also provide innovative perspectives of regenerative medicine and tissue engineering that could hold promise for this emerging surgical field...
2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/29051175/associations-between-residual-depressive-symptoms-cognition-and-functioning-in-patients-with-euthymic-bipolar-disorder-results-from-the-face-bd-cohort
#19
Paul Roux, Aurélie Raust, Anne-Sophie Cannavo, Valérie Aubin, Bruno Aouizerate, Jean-Michel Azorin, Frank Bellivier, Raoul Belzeaux, Thierry Bougerol, Iréna Cussac, Philippe Courtet, Bruno Etain, Sébastien Gard, Sophie Job, Jean-Pierre Kahn, Marion Leboyer, Emilie Olié, Chantal Henry, Christine Passerieux
BackgroundThe relationship between residual depressive symptoms, cognition and functioning in patients with euthymic bipolar disorder is a subject of debate.AimsTo assess whether cognition mediates the association between residual depressive symptoms and functioning in patients with bipolar disorder who were euthymic.MethodWe included 241 adults with euthymic bipolar disorder in a multicentre cross-sectional study. We used a battery of tests to assess six cognition domains. A path analysis was then used to perform a mediation analysis of the relationship between residual depressive symptoms, cognitive components and functioning...
October 19, 2017: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/29021837/the-bssg-rat-model-of-parkinson-s-disease-progressing-towards-a-valid-predictive-model-of-disease
#20
REVIEW
Jackalina M Van Kampen, Harold A Robertson
ABSTRACT: Parkinson's disease (PD) is a neurodegenerative disorder, classically considered a movement disorder. A great deal is known about the anatomical connections and neuropathology and pharmacological changes of PD, as they relate to the loss of dopaminergic function and the appearance of cardinal motor symptoms. Our understanding of the role of dopamine in PD has led to the development of effective pharmacological treatments of the motor symptoms in the form of dopamine replacement therapy using levodopa and dopaminergic agonists...
September 2017: EPMA Journal
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