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https://www.readbyqxmd.com/read/29351779/the-effect-of-twin-to-twin-delivery-time-intervals-on-neonatal-outcome-for-second-twins
#1
L Lindroos, A Elfvin, L Ladfors, U-B Wennerholm
BACKGROUND: The objective was to examine the effect of twin-to-twin delivery intervals on neonatal outcome for second twins. METHODS: This was a retrospective, hospital-based study, performed at a university teaching hospital in Western Sweden. Twin deliveries between 2008 and 2014 at ≥32 + 0 weeks of gestation, where the first twin was delivered vaginally, were included. Primary outcome was a composite outcome of metabolic acidosis, Apgar < 4 at 5 min or peri/neonatal mortality in the second twin...
January 19, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29351172/a-systematic-review-and-meta-analysis-of-genetic-risk-factors-for-neuropathic-pain
#2
Abirami Veluchamy, Harry L Hébert, Weihua Meng, Colin N A Palmer, Blair H Smith
Neuropathic pain (NP) is an increasingly common chronic pain state and a major health burden, affecting approximately 7-10% of the general population. Emerging evidence suggests that genetic factors could partially explain individual susceptibility to NP and the estimated heritability in twins is 37%. The aim of this study was to systematically review and summarize the studies in humans that have investigated the influence of genetic factors associated with NP. We conducted a comprehensive literature search and performed meta-analyses of all the potential genetic variants associated with NP...
January 18, 2018: Pain
https://www.readbyqxmd.com/read/29350440/abrupt-burial-imparts-persistent-changes-to-the-bacterial-diversity-of-turbidite-associated-sediment-profiles
#3
B K Harrison, A Myrbo, B E Flood, J V Bailey
The emplacement of subaqueous gravity-driven sediment flows imposes a significant physical and geochemical impact on underlying sediment and microbial communities. Although previous studies have established lasting mineralogical and biological signatures of turbidite deposition, the response of bacteria and archaea within and beneath debris flows remains poorly constrained. Both bacterial cells associated with the underlying sediment and those attached to allochthonous material must respond to substantially altered environmental conditions and selective pressures...
January 19, 2018: Geobiology
https://www.readbyqxmd.com/read/29350079/differences-in-home-blood-pressure-and-pulse-rates-between-singleton-and-twin-pregnancies
#4
Yukiko Mikami, Yasushi Takai, Sumiko Era, Yoshihisa Ono, Masahiro Saitoh, Kazunori Baba, Hiromichi Suzuki, Hiroyuki Seki
Objectives To evaluate home blood pressure (HBP) measurements during pregnancy and postpartum and investigate differences between singleton and twin pregnancies. Methods This prospective study involved normotensive, pregnant women who were planning to give birth at Saitama Medical Centre, Saitama, Japan between September 2013 and March 2017. HBP and pulse rate were measured twice daily and clinical blood pressure values were determined from patient records. Results HBP values were available from 101 participants; 69 women with singleton and 32 women with twin pregnancies...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29349843/pregnancy-after-bariatric-surgery-maternal-and-fetal-outcomes-of-39-pregnancies-and-a-literature-review
#5
Maria Manuel Costa, Sandra Belo, Pedro Souteiro, João S Neves, Daniela Magalhães, Rita B Silva, Sofia C Oliveira, Paula Freitas, Ana Varela, Joana Queirós, Davide Carvalho
AIM: We aimed to evaluate the impact of bariatric surgery (BS) on maternal and fetal outcomes. METHODS: A retrospective, descriptive, observational study of 39 pregnant women who underwent BS in our institution between 2010 and 2014 was carried out. A sample of women who became pregnant after BS was evaluated, based on data concerning pregnancy, childbirth, and newborns. RESULTS: Of the 1182 patients who underwent BS at our institution during the study period, 1016 (85...
January 18, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29348069/thermomechanical-processing-of-in-containing-%C3%AE-type-ti-nb-alloys
#6
Stefan Pilz, David Geissler, Mariana Calin, Jürgen Eckert, Martina Zimmermann, Jens Freudenberger, Annett Gebert
In this study, the effect of thermomechanical processing on microstructure evolution of the indium-containing β-type Ti alloys (Ti-40Nb)-3.5In and (Ti-36Nb)-3.5In was examined. Both alloys show an increased β-phase stability compared to binary alloys due to In additions. This leads to a reduced α''-phase fraction in the solution treated and recrystallized state in the case of (Ti-36Nb)-3.5In and to the suppression of stress-induced α'' formation and deformation twinning for (Ti-40Nb)-3.5In. The mechanical properties of the alloys were subsequently studied by quasistatic tensile tests in the recrystallized state, revealing reduced Young's modulus values of 58GPa ((Ti-40Nb)-3...
December 29, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29347926/handheld-ultrasound-to-avert-maternal-and-neonatal-deaths-in-2-regions-of-the-philippines-an-ibuntis%C3%A2-intervention-study
#7
Godofreda V Dalmacion, Ramon T Reyles, Antonia E Habana, Lalaine Mae V Cruz, Maricelle C Chua, Analyn T Ngo, Milagros J Tia-Jocson, Emmanuel S Baja
BACKGROUND: The major causes of maternal and neonatal mortality in the Philippines are hemorrhages and obstructed labor due to placental implantation abnormalities (PIAs), twin pregnancies and fetal malpresentations. All of which are all easily detected by ultrasound. However, women in rural areas and low-income groups do not have access to ultrasound during their prenatal care. We aimed to provide additional evidence on the benefits of handheld ultrasound (HU) for screening pregnancy related abnormalities in order to avert maternal and neonatal deaths...
January 18, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29346723/shear-induced-brittle-failure-along-grain-boundaries-in-boron-carbide
#8
Xiaokun Yang, Shawn P Coleman, Jerry Lasalvia, William A Goddard, Qi An
The roles of grain boundaries (GB) in mechanical properties have been examined extensively for metals and alloys; however, for covalent solids their roles in deformation response to applied stress are much less established. We consider here the unusual ceramic, boron carbide (B4C), which is very hard and lightweight but exhibits brittle impact behavior. We used quantum mechanics (QM) simulations to determine the mechanical response in the atomistic structures at GBs under pure shear and also with biaxial shear deformation that mimics indentation stress conditions...
January 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29346634/are-people-getting-quality-thalassemia-care-in-twin-cities-of-pakistan-a-comparison-with-international-standards
#9
Tehreem Tanveer, Haleema Masud, Zahid Ahmed Butt
Objectives: This study was conducted to determine if thalassemia patients were getting quality care in Rawalpindi and Islamabad, Pakistan, as per international standards and to identify determinants for better quality of thalassemia care. Design: A cross sectional study was conducted using interview based structured questionnaire, which was developed using standards of thalassemia care used by International Thalassemia Foundation. Setting: Five healthcare facilities catering to the needs of thalassemia patients in Rawalpindi and Islamabad, Pakistan...
January 16, 2018: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/29345508/response-by-twin-italian-hub-hospitals-in-a-double-seismic-event-a-retrospective-observational-investigation
#10
Alberto Barbieri, Gabriele Melegari, Valentina Lob, Lorenzo Mazzali, Luca D'Amelio, Andrea Giovannoni, Enrico Giuliani
INTRODUCTION: The objectives of this study were to compare prevalence rates of different pathologies, ambulance system and emergency department management times, and patient survival and hazard ratios for codes 2 and 3 in two hub hospitals in Modena in the 36-month period across the stages of two major earthquakes in short sequence in Northern Italy in 2012. METHODS: Clinical records pertaining to the emergency care of patients were analyzed and only those assigned status codes 2 and 3 by ambulance professionals were included (if the assessment was confirmed by emergency department triage)...
January 18, 2018: Prehospital Emergency Care
https://www.readbyqxmd.com/read/29343229/the-colombo-twin-and-singleton-follow-up-study-a-population-based-twin-study-of-psychiatric-disorders-and-metabolic-syndrome-in-sri-lanka
#11
Kaushalya Jayaweera, Lisa Aschan, Gayani Pannala, Anushka Adikari, Nicholas Glozier, Khalida Ismail, Carmine M Pariante, Fruhling Rijsdijk, Sisira Siribaddana, Helena M S Zavos, Patricia A Zunszain, Athula Sumathipala, Matthew Hotopf
BACKGROUND: The disease burden related to mental disorders and metabolic syndrome is growing in low-and middle-income countries (LMIC). The Colombo Twin and Singleton Study (COTASS) is a population-based sample of twins and singletons in Colombo, Sri Lanka. Here we present prevalence estimates for metabolic syndrome (metS) and mental disorders from a follow-up (COTASS-2) of the original study (COTASS-1), which was a mental health survey. METHODS: In COTASS-2, participants completed structured interviews, anthropometric measures and provided fasting blood and urine samples...
January 17, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29342883/development-of-sic-nanoparticles-and-second-phases-synergistically-reinforced-mg-based-composites-processed-by-multi-pass-forging-with-varying-temperatures
#12
Kaibo Nie, Yachao Guo, Kunkun Deng, Xiaojun Wang, Kun Wu
In this study, SiC nanoparticles were added into matrix alloy through a combination of semisolid stirring and ultrasonic vibration while dynamic precipitation of second phases was obtained through multi-pass forging with varying temperatures. During single-pass forging of the present composite, as the deformation temperature increased, the extent of recrystallization increased, and grains were refined due to the inhibition effect of the increasing amount of dispersed SiC nanoparticles. A small amount of twins within the SiC nanoparticle dense zone could be found while the precipitated phases of Mg17Al12 in long strips and deformation bands with high density dislocations were formed in the particle sparse zone after single-pass forging at 350 °C...
January 13, 2018: Materials
https://www.readbyqxmd.com/read/29341711/macroscopic-polarization-from-antiferrodistortive-cycloids-in-ferroelastic-srtio_-3
#13
Andrea Schiaffino, Massimiliano Stengel
Based on a first-principles based multiscale approach, we study the polarity P of ferroelastic twin walls in SrTiO_{3}. In addition to flexoelectricity, which was pointed out before, we identify two new mechanisms that crucially contribute to P: a direct "rotopolar" coupling to the gradients of the antiferrodistortive oxygen tilts, and a trilinear coupling that is mediated by the antiferroelectric displacement of the Ti atoms. Remarkably, the rotopolar coupling presents a strong analogy to the mechanism that generates a spontaneous polarization in cycloidal magnets...
September 29, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29340788/the-impact-of-advanced-maternal-age-on-the-outcome-of-twin-pregnancies
#14
Ohad Gluck, Yossi Mizrachi, Jacob Bar, Giulia Barda
PURPOSE: To assess the effect of advanced maternal age on the obstetrics and neonatal outcome of twin pregnancies. METHODS: A retrospective study of 716 dichorionic-diamniotic twin pregnancies delivered at our institute. The study population was divided into two groups: women aged 35-39 years (group A, n = 142) and women aged ≥ 40 years (Group B, n = 48). The control group consisted of women younger than 35 years (group C, n = 516). RESULTS: The rate of cesarean section (CS) was significantly higher among women older than 35 years compared to the control group (A 76...
January 16, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29338992/subsequent-fertility-pregnancy-and-gynecologic-outcomes-after-fetoscopic-laser-therapy-for-twin-twin-transfusion-syndrome-compared-to-normal-monochorionic-twin-gestations
#15
Simen Vergote, Liesbeth Lewi, Willem Gheysen, Luc de Catte, Roland Devlieger, Jan Deprest
BACKGROUND: An improved survival and quality of life for neonatal survivors after fetoscopic laser therapy (FLC) for twin-twin transfusion syndrome (TTTS) has been reported. However, little is known about the medium-term maternal effects after FLC with respect to reproductive and gynecologic outcomes. OBJECTIVE: To document reproductive, obstetric, gynecologic and psychological outcomes in women who underwent FLC for TTTS. STUDY DESIGN: Monocentric controlled study on consecutive women who underwent FLC for TTTS between 2007 and 2013 at the University Hospitals Leuven (cases; n=198)...
January 12, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29338921/faster-progression-from-mci-to-probable-ad-for-carriers-of-a-single-nucleotide-polymorphism-associated-with-type-2-diabetes
#16
Hugo Girard, Olivier Potvin, Scott Nugent, Caroline Dallaire-Théroux, Stephen Cunnane, Simon Duchesne
Sporadic Alzheimer's disease (AD), as opposed to its autosomal dominant form, is likely caused by a complex interaction of genetic, environmental, and health lifestyle factors. Twin studies indicate that sporadic AD heritability could be between 58% and 79%, around half of which is explained by the ε4 allele of the apolipoprotein E (APOE4). We hypothesized that genes associated with known risk factors for AD, namely hypertension, hypercholesterolemia, obesity, diabetes, and cardiovascular disease, would contribute significantly to the remaining heritability...
December 7, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/29338137/morphological-embryo-selection-an-elective-single-embryo-transfer-proposal
#17
Francisco Parera Déniz, Carlos Encinas, Jorge La Fuente
OBJECTIVE: To describe a patient selection method for elective single embryo transfer (eSET), emphasizing inclusion criteria and results. METHODS: This retrospective study included all cases seen in a private clinic between June 2011 and December 2016, in La Paz, Bolivia (3600 meters above sea level). Elective single embryo transfer was the method of choice in 34 IVF/ICSI cycles, all in the blastocyst stage. Gardner's blastocyst classification criteria were used...
January 17, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29337583/sudden-death-aversion-avoiding-superior-options-because-they-feel-riskier
#18
Jesse Walker, Jane L Risen, Thomas Gilovich, Richard Thaler
We present evidence of sudden-death aversion (SDA)-the tendency to avoid "fast" strategies that provide a greater chance of success, but include the possibility of immediate defeat, in favor of "slow" strategies that reduce the possibility of losing quickly, but have lower odds of ultimate success. Using a combination of archival analyses and controlled experiments, we explore the psychology behind SDA. First, we provide evidence for SDA and its cost to decision makers by tabulating how often NFL teams send games into overtime by kicking an extra point rather than going for the 2-point conversion (Study 1) and how often NBA teams attempt potentially game-tying 2-point shots rather than potentially game-winning 3-pointers (Study 2)...
January 15, 2018: Journal of Personality and Social Psychology
https://www.readbyqxmd.com/read/29336653/development-of-a-three-compartmental-population-balance-model-for-a-continuous-twin-screw-wet-granulation-process
#19
Huolong Liu, Shaun C Galbraith, Seo-Young Park, Bumjoon Cha, Zhuangrong Huang, Robert Frederick Meyer, Matthew H Flamm, Thomas O'Connor, Sau Lee, Seongkyu Yoon
In this study, a novel three-compartmental population balance model for a continuous twin screw wet granulation process is developed, combining the techniques of population balance modeling and regression process modeling. The developed model links screw configuration, screw speed and blend throughput with granule properties to predict the granule size distribution and volume-average granule diameter. The granulator screw barrel was divided into three compartments along barrel length: wetting compartment, mixing compartment and steady growth compartment...
January 16, 2018: Pharmaceutical Development and Technology
https://www.readbyqxmd.com/read/29336012/predictors-and-consequences-of-health-anxiety-symptoms-a-novel-twin-modeling-study
#20
C López-Solà, M Bui, J L Hopper, L F Fontenelle, C G Davey, C Pantelis, P Alonso, O A van den Heuvel, B J Harrison
OBJECTIVE: The question of how to best conceptualize health anxiety (HA) from a diagnostic and etiological perspective remains debated. The aim was to examine the relationship between HA and the symptoms of anxiety and obsessive-compulsive-related disorders in a normative twin population. METHOD: Four hundred and ninety-six monozygotic adult twin pairs from the Australian Twin Registry participated in the study (age, 34.4 ± 7.72 years; 59% females). Validated scales were used to assess each domain...
January 15, 2018: Acta Psychiatrica Scandinavica
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