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https://www.readbyqxmd.com/read/29328720/real-time-dynamics-and-phase-separation-in-a-holographic-first-order-phase-transition
#1
Romuald A Janik, Jakub Jankowski, Hesam Soltanpanahi
We study the fully nonlinear time evolution of a holographic system possessing a first order phase transition. The initial state is chosen in the spinodal region of the phase diagram, and it includes an inhomogeneous perturbation in one of the field theory directions. The final state of the time evolution shows a clear phase separation in the form of domain formation. The results indicate the existence of a very rich class of inhomogeneous black hole solutions.
December 29, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29313560/surgical-closure-of-patent-ductus-arteriosus-in-extremely-low-birth-weight-infants-less-than-750-grams
#2
Tomasz Stankowski, Sleiman Sebastian Aboulhassan, Dirk Fritzsche, Marcin Misterski, Jakub Marczak, Anna Szymańska, Lukasz Szarpak, Cyprian Augustyn, Romuald Cichoń, Bartłomiej Perek
BACKGROUND: Patent ductus arteriosus (PDA) occurs more frequently in premature infants. Depending on the degree of prematurity, these children often have other serious comorbidities that could significantly impact on surgical outcome. AIM: This study aimed to evaluate clinical results of the surgical ligation of PDA in extremely low body weight preterm infants with birth weight below 750 grams and to identify risk factors of mortality. METHODS: A total of 31 preterm infants with birth weight below 750 grams and significant PDA were operated between 2006 and 2016 through posterolateral thoracotomy (n=16) or with the use of video-assisted thoracoscopic (VATS) method (n = 15)...
January 9, 2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29285953/incidence-characteristics-and-prognosis-of-acute-kidney-injury-in-cameroon-a-prospective-study-at-the-douala-general-hospital
#3
Marie Patrice E Halle, Ndjifoum Moselle Chipekam, Gérard Beyiha, Hermine Fouda, Aminata Coulibaly, Romuald Hentchoya, Folefack Francois Kaze, Namme Henry Luma, Gloria Ashuntantang
OBJECTIVE: There are limited data on AKI in sub-Saharan Africa. We aim to determine the incidence, characteristics and prognosis of AKI in Cameroon. PATIENTS AND METHODS: A prospective study including all consenting acute admissions in the internal medicine and the ICU of a tertiary referral hospital in Cameroon from January 2015 to June 2016. Serum creatinine assay was done on admission, days 2 and 7 to diagnose AKI. For patients with AKI, serum creatinine was done on discharge, days 30, 60 and 90...
November 2018: Renal Failure
https://www.readbyqxmd.com/read/29248445/intracellular-manganese-enhanced-mri-signals-reflect-the-frequency-of-action-potentials-in-aplysia-neurons
#4
Pavel Svehla, Alexis Bédécarrats, Caroline Jahn, Romuald Nargeot, Luisa Ciobanu
BACKGROUND: Manganese-enhanced magnetic resonance imaging (MEMRI) is an increasingly popular alternative to standard functional MRI methods in animal studies. The contrast in MEMRI images is based on the accumulation of Mn2+ ions inside neurons, and, since manganese can serve as calcium analogue, this accumulation reflects calcium dynamics providing versatile information about brain neuroarchitecture and functionality. However, despite its use as a functional imaging tool, the exact relationship between the MEMRI signal and neuronal activity remains elusive...
December 14, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29234521/mental-health-difficulties-and-suicidal-behaviours-among-young-migrants-multicentre-study-of-european-adolescents
#5
Elaine M McMahon, Paul Corcoran, Helen Keeley, Mary Cannon, Vladimir Carli, Camilla Wasserman, Marco Sarchiapone, Alan Apter, Judit Balazs, Raphaela Banzer, Julio Bobes, Romuald Brunner, Doina Cozman, Christian Haring, Michael Kaess, Jean-Pierre Kahn, Agnes Kereszteny, Ursa Mars Bitenc, Bogdan Nemes, Vita Poštuvan, Pilar A Sáiz, Merike Sisask, Alexandra Tubiana, Peeter Värnik, Christina W Hoven, Danuta Wasserman
Background: Migration has been reported to be associated with higher prevalence of mental disorders and suicidal behaviour. Aims: To examine the prevalence of emotional and behavioural difficulties, suicidal ideation and suicide attempts among migrant adolescents and their non-migrant peers. Method: A school-based survey was completed by 11 057 European adolescents as part of the Saving and Empowering Young Lives in Europe (SEYLE) study. Results: A previous suicide attempt was reported by 386 (3...
November 2017: BJPsych Open
https://www.readbyqxmd.com/read/29215142/cortical-thickness-resting-state-heart-rate-and-heart-rate-variability-in-female-adolescents
#6
Julian Koenig, Peter Parzer, Corinna Reichl, Ayaka Ando, Julian F Thayer, Romuald Brunner, Michael Kaess
Resting state heart rate variability (HRV) is a psychophysiological marker that has gained increasing research interest, in particular in developmental neuroscience. HRV has been shown to be associated with mental and physical health, beyond simple measures of heart rate (HR) and shows inter- and intraindividual variance across aging. Recently, three studies reported on a positive correlation between resting state HRV and cortical thickness in selected regions of interest (ROIs) in adult samples. Structural thickness, HRV, and HR change during the sensitive period of adolescence...
December 7, 2017: Psychophysiology
https://www.readbyqxmd.com/read/29211353/evaluation-of-nmp22-in-bladder-cancer-patients-sensitive-to-environmental-toxins
#7
Beata Szymańska, Krzysztof J Pawlik, Ewa Sawicka, Janusz Dembowski, Paweł Kowal, Romuald Zdrojowy, Anna Długosz
BACKGROUND: Bladder cancer (BC) is recognized as environmentally related. The interaction of environmental exposure to chemicals and genetic susceptibility seem to play important roles in BC development. In order to improve diagnosis and the recognition of BC risk, a group of markers which combine genetic susceptibility with detoxification and nuclear matrix protein (NMP22) is proposed. OBJECTIVES: The aim of the study was to examine the utility of nuclear matrix protein (NMP22) as a diagnostic marker in BC in genetic susceptibility (NAT2 slow acetylators) combined with detoxification abilities (glutathione S-transferase GST and isoenzyme GST-π)...
October 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29205497/the-use-of-preoperative-aspirin-in-cardiac-surgery-a-systematic-review-and-meta-analysis
#8
REVIEW
Sleiman Sebastian Aboul-Hassan, Tomasz Stankowski, Jakub Marczak, Maciej Peksa, Marcin Nawotka, Ryszard Stanislawski, Bartosz Kryszkowski, Romuald Cichon
BACKGROUND: Despite the fact that aspirin is of benefit to patients following coronary artery bypass grafting (CABG), continuation or administration of preoperative aspirin before CABG or any cardiac surgical procedure remains controversial. Therefore, we performed a systematic review and meta-analysis to assess the influence of preoperative aspirin administration on patients undergoing cardiac surgery. MATERIALS AND METHODS: Medline database was searched using OVID SP interface...
December 3, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/29202270/effects-of-neuromuscular-electrical-stimulation-on-contralateral-quadriceps-function
#9
Thomas Cattagni, Romuald Lepers, Nicola A Maffiuletti
Because maximal voluntary strength of the knee extensor muscles can be facilitated by the concomitant application of neuromuscular electrical stimulation (NMES) to the contralateral homologous muscle, we aimed to determine whether this was associated with an enhanced neural drive to the agonist muscles. A secondary goal of this study was to examine the potential dose-response relationship between NMES intensity and contralateral facilitation. Twelve healthy men (age: 30 ± 7 yr) completed several maximal voluntary contractions (MVC) of the left knee extensors while the right quadriceps received low-intensity NMES (10% MVC), high-intensity NMES (30% MVC) or no NMES...
November 28, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29190627/gender-related-differences-and-short-term-outcome-of-stroke-results-from-a-hospital-based-registry-in-sub-saharan-africa
#10
Yacouba Njankouo Mapoure, Ngowo Lydia Eyambe, Anastase Tamdja Dzudie, Chia Mark Ayeah, Hamadou Ba, Romuald Hentchoya, Henry Namme Luma
BACKGROUND: Studies suggest that sex differences have an impact on patients with stroke, but existing data in Africa remain inconclusive about this inference. OBJECTIVES: To study sex differences in terms of the clinical profile and short-term outcome of stroke in the Douala General Hospital, Cameroon. METHODS: A hospital-based prospective cohort study was carried out in a tertiary care hospital over an 8-year period, which included all patients admitted for confirmed acute stroke...
November 30, 2017: Neuroepidemiology
https://www.readbyqxmd.com/read/29157455/identification-of-preterm-birth-based-on-rqa-analysis-of-electrohysterograms
#11
Marta Borowska, Ewelina Brzozowska, Paweł Kuć, Edward Oczeretko, Romuald Mosdorf, Piotr Laudański
BACKGROUND AND OBJECTIVE: Common methods for data analysis are mainly based on linear concepts, but in recent years nonlinear dynamics methods have been introduced. It is a well-known fact that In typical biological systems lack of stationarity and rather sudden changes of state are the properties distinguishing them from each other. There is an urgent need to better understand the mechanical activity of the myometrium (its contractility) to find a solution for preterm delivery problem, the largest cause of neonatal deaths and morbidity...
January 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29153396/the-prognostic-value-of-serum-uric-acid-in-the-acute-phase-of-ischemic-stroke-in-black-africans
#12
Yacouba Njankouo Mapoure, Chia Mark Ayeah, Hamadou Ba, Romuald Hentchoya, Henry Namme Luma
BACKGROUND: The association between hyperuricemia and stroke outcome still remains controversial worldwide. This study aims to determine the prevalence of hyperuricemia and its association with the outcome of patients with acute ischemic stroke in a tertiary care hospital. METHODS: This was a hospital-based prospective cohort study that included patients with ischemic stroke with baseline uric acid levels and 3-month post-stroke follow-up data. Associations between hyperuricemia and stroke outcomes were analyzed using multiple logistic regression, Kaplan-Meier, and Cox proportional hazards regression analysis...
November 15, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29151255/weight-disorders-in-short-children
#13
Paweł Tomaszewski, Anna Majcher, Katarzyna Milde, Romuald Stupnicki
This study aimed to determine the degree of adiposity and prevalence of weight disorders in short children and to assess relationships between selected birth parameters and actual body fat content and body mass indicators. The study encompassed 85 girls and 97 boys, aged 7-14 years, with height below the 10th centile of the age and sex standard. In addition, 609 normal-height children (height between 25th and 75th centile) served as a comparison group. The children underwent measurements of body mass and height, skinfold thickness, and waist circumference...
November 19, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29129317/the-genetic-legacy-of-the-indian-ocean-slave-trade-recent-admixture-and-post-admixture-selection-in-the-makranis-of-pakistan
#14
Romuald Laso-Jadart, Christine Harmant, Hélène Quach, Nora Zidane, Chris Tyler-Smith, Qasim Mehdi, Qasim Ayub, Lluis Quintana-Murci, Etienne Patin
From the eighth century onward, the Indian Ocean was the scene of extensive trade of sub-Saharan African slaves via sea routes controlled by Muslim Arab and Swahili traders. Several populations in present-day Pakistan and India are thought to be the descendants of such slaves, yet their history of admixture and natural selection remains largely undefined. Here, we studied the genome-wide diversity of the African-descent Makranis, who reside on the Arabian Sea coast of Pakistan, as well that of four neighboring Pakistani populations, to investigate the genetic legacy, population dynamics, and tempo of the Indian Ocean slave trade...
November 1, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29128780/apnea-testing-using-the-oxygen-insufflation-method-for-diagnosis-of-brain-death-may-compromise-pulmonary-function
#15
Joanna Sołek-Pastuszka, Marcin Sawicki, Waldemar Iwańczuk, Klaudyna Kojder, Wojciech Saucha, Zenon Czajkowski, Kornel Chełstowski, Romuald Bohatyrewicz
INTRODUCTION: The aim of our study was to compare the reliability and safety of the classical I-AT with the continuous positive airway pressure apnea test (CPAP-AT). MATERIAL AND METHODS: In the group of 48 patients (group O), an I-AT was performed at the end of BD diagnostic procedures, and approximately 1-1.5h later CPAP-AT with 100% FiO2 and CPAP of 10cm H2O, provided by ventilator in CPAP mode. After pre‑oxygenation with 100% FiO2 for 10min, the PaO2/FiO2 ratio was recorded prior to I-AT at time-point one (T1) and prior to CPAP-AT at time-point two (T2)...
October 28, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/29125616/acute-type-a-aortic-dissection-involving-the-iliac-and-left-renal-arteries-misdiagnosed-as-myocardial-infarction
#16
Paul Nkemtendong Tolefac, Anastase Dzudie, Sidick Mouliom, Leopold Aminde, Romuald Hentchoya, Martin H Abanda, Charles Mve Mvondo, Vanina D Wanko, Henry N Luma
Acute aortic dissection is the most frequent and deadly presentation of acute aortic syndromes. Its incidence is estimated at three to four cases per 100 000 persons per year. Its clinical presentation may be misleading, with misdiagnosis ranging between 14.1 and 38% in many series. A late diagnosis or absence of early and appropriate management is associated with mortality rates as high as 50 and 80% by the third day and second week, respectively, especially in proximal lesions. We report on the case of a 53-year-old man who presented with type A aortic dissection, misdiagnosed as acute myocardial infarction, who later died on day 12 of hospitalisation...
November 3, 2017: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/29104587/notch-and-its-oncogenic-activity-in-human-malignancies
#17
REVIEW
Marlena Brzozowa-Zasada, Adam Piecuch, Marek Michalski, Oliwia Segiet, Józef Kurek, Marzena Harabin-Słowińska, Romuald Wojnicz
Background: Increasing evidence has demonstrated that Notch signaling is deregulated in human hematological malignancies and solid tumors. This signaling has a protumorigenic effect but may also act as a tumor suppressor. How induction of a single pathway gives rise to the opposite effects in different cell types is still unknown. Methods: This review article includes available data from peer-reviewed publications associated with the role of Notch signaling during cancer pathogenesis...
2017: European Surgery: ACA: Acta Chirurgica Austriaca
https://www.readbyqxmd.com/read/29082787/psychopathology-and-borderline-personality-pathology-associated-with-lifetime-self-injurious-behavior-in-adolescent-psychiatric-inpatients-and-detainees
#18
Julian Koenig, Romuald Brunner, Johannes Michael Schmidt, Peter Parzer, Franz Resch, Michael Kaess
OBJECTIVE: Self-injurious behavior (SIB) is a widespread phenomenon among adolescent psychiatric inpatients. It is also reported among delinquent adolescents detained in correctional facilities. While previous studies have addressed different functions of SIB within offender populations, here we investigate particular patterns of borderline personality pathology and psychopathology underlying SIB in both adolescent psychiatric inpatients and detainees. METHOD: Adolescent psychiatric inpatients and detainees were recruited consecutively...
November 2017: Zeitschrift Für Kinder- und Jugendpsychiatrie und Psychotherapie
https://www.readbyqxmd.com/read/29074818/randomized-clinical-trial-of-sevelamer-carbonate-on-serum-klotho-and-fibroblast-growth-factor-23-in-ckd
#19
Sophie Liabeuf, Jean-Philippe Ryckelynck, Najeh El Esper, Pablo Ureña, Christian Combe, Bertrand Dussol, Denis Fouque, Philippe Vanhille, Luc Frimat, Eric Thervet, Romuald Mentaverri, Dominique Prié, Gabriel Choukroun
BACKGROUND AND OBJECTIVES: Epidemiologic studies suggest that higher serum phosphaturic hormone fibroblast growth factor 23 levels are associated with increase morbidity and mortality. The aim of the FGF23 Reduction Efficacy of a New Phosphate Binder in CKD Trial was to evaluate the effect of sevelamer carbonate on serum C-terminal fibroblast growth factor 23 levels in normophosphatemic patients with CKD stage 3b/4. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Patients with CKD, eGFR between 45 and 15 ml/min per 1...
December 7, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29068584/hydronephrosis-in-the-course-of-ureteropelvic-junction-obstruction-an-underestimated-problem-current-opinions-on-the-pathogenesis-diagnosis-and-treatment
#20
REVIEW
Wojciech Krajewski, Joanna Wojciechowska, Janusz Dembowski, Romuald Zdrojowy, Tomasz Szydełko
Ureteropelvic junction obstruction (UPJO) causes a reduction in the urine flow from the renal pelvis into the ureter. Untreated UPJO may cause hydronephrosis, chronic infection or urolithiasis and will often result in progressive deterioration of renal function. Most cases of UPJO are congenital; however, the disease can be clinically silent until adulthood. Other causes, both intrinsic and extrinsic, are acquired and include urolithiasis, post-operative/inflammatory/ischemic stricture, fibroepithelial polyps, adhesions and malignancy...
August 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
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